
Functional Overview
63
November 2002 Revised January 2005
SPRS205D
Table 325. Real-Time Clock Registers
WORD ADDRESS
REGISTER NAME
DESCRIPTION
RESET VALUE
0x1800
RTCSEC
Seconds Register
0000 0000 0000 0000
0x1801
RTCSECA
Seconds Alarm Register
0000 0000 0000 0000
0x1802
RTCMIN
Minutes Register
0000 0000 0000 0000
0x1803
RTCMINA
Minutes Alarm Register
0000 0000 0000 0000
0x1804
RTCHOUR
Hours Register
0000 0000 0000 0000
0x1805
RTCHOURA
Hours Alarm Register
0000 0000 0000 0000
0x1806
RTCDAYW
Day of the Week Register
0000 0000 0000 0000
0x1807
RTCDAYM
Day of the Month (date) Register
0000 0000 0000 0000
0x1808
RTCMONTH
Month Register
0000 0000 0000 0000
0x1809
RTCYEAR
Year Register
0000 0000 0000 0000
0x180A
RTCPINTR
Periodic Interrupt Selection Register
0000 0000 0000 0000
0x180B
RTCINTEN
Interrupt Enable Register
0000 0000 1000 0000
0x180C
RTCINTFL
Interrupt Flag Register
0000 0000 0000 0000
0x180D0x1BFF
Reserved
Hardware reset; x denotes a “don’t care.”
Table 326. Clock Generator
WORD ADDRESS
REGISTER NAME
DESCRIPTION
RESET VALUE
0x1C00
CLKMD[14:0]
Clock Mode Register
0010 0000 0000 0010 DIV1 mode
0x1E00
USBDPLL[14:0]
USB DPLL Control Register
If non-USB boot mode:
0010 0000 0000 0110 DIV2 mode
If USB boot mode:
0010 0010 0001 0011 PLL MULT4 mode
0x1E80
USBPLLSEL[2:0]
USB PLL Selection Register
0000 0000 0000 0100
0x1F00
USBAPLL[15:0]
USB APLL Control Register
0000 0000 0000 0000
Hardware reset; x denotes a “don’t care.”
DPLL is the power-up default USB clock source.
Table 327. Timers
WORD ADDRESS
REGISTER NAME
DESCRIPTION
RESET VALUE
0x1000
TIM0[15:0]
Timer Count Register, Timer #0
1111 1111 1111 1111
0x1001
PRD0[15:0]
Period Register, Timer #0
1111 1111 1111 1111
0x1002
TCR0[15:0]
Timer Control Register, Timer #0
0000 0000 0001 0000
0x1003
PRSC0[15:0]
Timer Prescaler Register, Timer #0
xxxx 0000 xxxx 0000
0x2400
TIM1[15:0]
Timer Count Register, Timer #1
1111 1111 1111 1111
0x2401
PRD1[15:0]
Period Register, Timer #1
1111 1111 1111 1111
0x2402
TCR1[15:0]
Timer Control Register, Timer #1
0000 0000 0001 0000
0x2403
Hardware reset; x denotes a “don’t care.”
PRSC1[15:0]
Timer Prescaler Register, Timer #1
xxxx 0000 xxxx 0000