--- /dev/null
+#ifndef __MSP430_HEADERS_SYS_H
+#define __MSP430_HEADERS_SYS_H
+
+/* sys.h
+ *
+ * mspgcc project: MSP430 device headers
+ * system control module
+ *
+ * (c) 2008 by Sergey A. Borshch <sb-sf@users.sf.net>
+ * Originally based in MSP430F543x datasheet (slas609)
+ * and MSP430x5xx Family User's Guide (slau208).
+ *
+ * $Id: sys.h,v 1.3 2009/02/28 12:14:53 sb-sf Exp $
+ */
+
+/* Switches:
+
+__MSP430_SYS_BASE__ - base address of SYS module
+
+*/
+
+#define SYSCTL_ __MSP430_SYS_BASE__ + 0x00 /* System control register */
+sfrw(SYSCTL, SYSCTL_);
+#define SYSCTL_L_ __MSP430_SYS_BASE__ + 0x00 /* low byte */
+sfrb(SYSCTL_L, SYSCTL_L_);
+#define SYSCTL_H_ __MSP430_SYS_BASE__ + 0x01 /* high byte */
+sfrb(SYSCTL_H, SYSCTL_H_);
+
+#define SYSBSLC_ __MSP430_SYS_BASE__ + 0x02 /* Bootstrap loader configuration register */
+sfrw(SYSBSLC, SYSBSLC_);
+#define SYSBSLC_L_ __MSP430_SYS_BASE__ + 0x02 /* low byte */
+sfrb(SYSBSLC_L, SYSBSLC_L_);
+#define SYSBSLC_H_ __MSP430_SYS_BASE__ + 0x03 /* high byte */
+sfrb(SYSBSLC_H, SYSBSLC_H_);
+
+#define SYSARB_ __MSP430_SYS_BASE__ + 0x04 /* Arbitration configuration register */
+sfrw(SYSARB, SYSARB_);
+#define SYSARB_L_ __MSP430_SYS_BASE__ + 0x04 /* low byte */
+sfrb(SYSARB_L, SYSARB_L_);
+#define SYSARB_H_ __MSP430_SYS_BASE__ + 0x05 /* high byte */
+sfrb(SYSARB_H, SYSARB_H_);
+
+#define SYSJMBC_ __MSP430_SYS_BASE__ + 0x06 /* JTAG Mailbox control register */
+sfrw(SYSJMBC, SYSJMBC_);
+#define SYSJMBC_L_ __MSP430_SYS_BASE__ + 0x06 /* low byte */
+sfrb(SYSJMBC_L, SYSJMBC_L_);
+#define SYSJMBC_H_ __MSP430_SYS_BASE__ + 0x07 /* high byte */
+sfrb(SYSJMBC_H, SYSJMBC_H_);
+
+#define SYSJMBI0_ __MSP430_SYS_BASE__ + 0x08 /* JTAG Mailbox input register #0 */
+sfrw(SYSJMBI0, SYSJMBI0_);
+#define SYSJMBI0_L_ __MSP430_SYS_BASE__ + 0x08 /* low byte */
+sfrb(SYSJMBI0_L, SYSJMBI0_L_);
+#define SYSJMBI0_H_ __MSP430_SYS_BASE__ + 0x09 /* high byte */
+sfrb(SYSJMBI0_H, SYSJMBI0_H_);
+
+#define SYSJMBI1_ __MSP430_SYS_BASE__ + 0x0A /* JTAG Mailbox input register #1 */
+sfrw(SYSJMBI1, SYSJMBI1_);
+#define SYSJMBI1_L_ __MSP430_SYS_BASE__ + 0x0A /* low byte */
+sfrb(SYSJMBI1_L, SYSJMBI1_L_);
+#define SYSJMBI1_H_ __MSP430_SYS_BASE__ + 0x0B /* high byte */
+sfrb(SYSJMBI1_H, SYSJMBI1_H_);
+
+#define SYSJMBO0_ __MSP430_SYS_BASE__ + 0x0C /* JTAG Mailbox output register #0 */
+sfrw(SYSJMBO0, SYSJMBO0_);
+#define SYSJMBO0_L_ __MSP430_SYS_BASE__ + 0x0C /* low byte */
+sfrb(SYSJMBO0_L, SYSJMBO0_L_);
+#define SYSJMBO0_H_ __MSP430_SYS_BASE__ + 0x0D /* high byte */
+sfrb(SYSJMBO0_H, SYSJMBO0_H_);
+
+#define SYSJMBO1_ __MSP430_SYS_BASE__ + 0x0E /* JTAG Mailbox output register #1 */
+sfrw(SYSJMBO1, SYSJMBO1_);
+#define SYSJMBO1_L_ __MSP430_SYS_BASE__ + 0x0E /* low byte */
+sfrb(SYSJMBO1_L, SYSJMBO1_L_);
+#define SYSJMBO1_H_ __MSP430_SYS_BASE__ + 0x0F /* high byte */
+sfrb(SYSJMBO1_H, SYSJMBO1_H_);
+
+#define SYSBERRIV_ __MSP430_SYS_BASE__ + 0x18 /* Bus error vector generator */
+sfrw(SYSBERRIV, SYSBERRIV_);
+#define SYSUNIV_ __MSP430_SYS_BASE__ + 0x1A /* User NMI vector generator */
+sfrw(SYSUNIV, SYSUNIV_);
+#define SYSSNIV_ __MSP430_SYS_BASE__ + 0x1C /* System NMI vector generator */
+sfrw(SYSSNIV, SYSSNIV_);
+#define SYSRSTIV_ __MSP430_SYS_BASE__ + 0x1E /* System reset vector generator */
+sfrw(SYSRSTIV, SYSRSTIV_);
+
+/* SYSCTL, SYSCTL_L */
+#define SYSJTAGPIN (1<<5) /* Dedicated JTAG pins enable */
+#define SYSBSLIND (1<<4) /* TCK/RST entry BSL indication detected */
+#define SYSPMMPE (1<<2) /* PMM access protect */
+#define SYSRIVECT (1<<0) /* RAM based interrupt vectors */
+
+/* SYSBSLC, SYSBSLC_L, SYSBSLC_H */
+#define SYSBSLPE (1<<15) /* BSL memory protection enable */
+#define SYSBSLOFF (1<<14) /* BSL memory disable for size covered in SYSBSLSIZE */
+#define SYSBSLR (1<<2) /* RAM assigned to BSL */
+#define SYSBSLSIZE1 (1<<1) /* BSL size */
+#define SYSBSLSIZE0 (1<<0) /* BSL size */
+
+#define SYSBSLSIZE_0 (0<<0) /* size 512 bytes, BSL_SEG_3 */
+#define SYSBSLSIZE_1 (1<<0) /* size 1024 bytes, BSL_SEG_2,3 */
+#define SYSBSLSIZE_2 (2<<0) /* size 1536 bytes, BSL_SEG_1,2,3 */
+#define SYSBSLSIZE_3 (3<<0) /* size 2048 bytes, BSL_SEG_0,1,2,3 */
+
+/* SYSJMBC, SYSJMBC_L */
+#define JMBCLR1OFF (1<<7) /* Incomming JTAG mailbox 1 flag auto-clear disable */
+#define MBCLR0OFF (1<<6) /* Incomming JTAG mailbox 0 flag auto-clear disable */
+#define JMBMODE (1<<4) /* Operation mode of JMB for JMBI0/1 and JMBO0/1 */
+#define JMBOUT1FG (1<<3) /* Outgoing JTAG mailbox 1 flag */
+#define JMBOUT0FG (1<<2) /* Outgoing JTAG mailbox 0 flag */
+#define JMBIN1FG (1<<1) /* Incoming JTAG mailbox 1 flag */
+#define JMBIN0FG (1<<0) /* Incoming JTAG mailbox 0 flag */
+
+
+#ifndef __ASSEMBLER__
+/* Structured declaration */
+
+#undef __xstr
+#undef __str
+#define __xstr(x) __str(x)
+#define __str(x) #x
+
+typedef struct
+{
+ union
+ {
+ volatile unsigned int CTL; /* System control register */
+ struct
+ {
+ volatile unsigned char CTL_L; /* low byte */
+ volatile unsigned char CTL_H; /* high byte */
+ };
+ };
+ union
+ {
+ volatile unsigned int BSLC; /* Bootstrap loader configuration register */
+ struct
+ {
+ volatile unsigned char BSLC_L; /* low byte */
+ volatile unsigned char BSLC_H; /* high byte */
+ };
+ };
+ union
+ {
+ volatile unsigned int ARB; /* Arbitration configuration register */
+ struct
+ {
+ volatile unsigned char ARB_L; /* low byte */
+ volatile unsigned char ARB_H; /* high byte */
+ };
+ };
+ union
+ {
+ volatile unsigned int JMBC; /* JTAG Mailbox control register */
+ struct
+ {
+ volatile unsigned char JMBC_L; /* low byte */
+ volatile unsigned char JMBC_H; /* high byte */
+ };
+ };
+ union
+ {
+ volatile unsigned int JMBI0; /* JTAG Mailbox input register #0 */
+ struct
+ {
+ volatile unsigned char JMBI0_L; /* low byte */
+ volatile unsigned char JMBI0_H; /* high byte */
+ };
+ };
+ union
+ {
+ volatile unsigned int JMBI1; /* JTAG Mailbox input register #1 */
+ struct
+ {
+ volatile unsigned char JMBI1_L; /* low byte */
+ volatile unsigned char JMBI1_H; /* high byte */
+ };
+ };
+ union
+ {
+ volatile unsigned int JMBO0; /* JTAG Mailbox output register #0 */
+ struct
+ {
+ volatile unsigned char JMBO0_L; /* low byte */
+ volatile unsigned char JMBO0_H; /* high byte */
+ };
+ };
+ union
+ {
+ volatile unsigned int JMBO1; /* JTAG Mailbox output register #1 */
+ struct
+ {
+ volatile unsigned char JMBO1_L; /* low byte */
+ volatile unsigned char JMBO1_H; /* high byte */
+ };
+ };
+ unsigned int dummy[4];
+ volatile unsigned int BERRIV; /* Bus error vector generator */
+ volatile unsigned int UNIV; /* User NMI vector generator */
+ volatile unsigned int SNIV; /* System NMI vector generator */
+ volatile unsigned int RSTIV; /* System reset vector generator */
+} sys_t;
+sys_t SYS asm(__xstr(__MSP430_SYS_BASE__));
+
+#endif /* __ASSEMBLER__ */
+
+#endif /* __MSP430_HEADERS_SYS_H */
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