M37160M8 Datasheet, PDF (122/131 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

M37160M8/MA/MF-XXXSP/FP,M37160EFSP/FP
Address 00FB16
CPU Mode Register
b7 b6 b5 b4 b3 b2 b1 b0
1 1 0 0 CPU mode register (CM) [Address 00FB16]
B
Name
0, 1 Processor mode bits
(CM0, CM1)
2 Stack page selection
bit (CM2) (See note1)
Functions
After reset R W
b1 b0
0 0: Single-chip mode
0 RW
0 1:
1 0: Not available
1 1:
0: 0 page
1: 1 page
1 RW
3, 4 Fix these bits to “1.”
1 RW
5 XCOUT drivability
selection bit (CM5)
0: LOW drive
1: HIGH drive
6 _{Main Clock (XIN) stop bit 0: Oscillating}
(CM6)
1: Stopped
1 RW
0 RW
7 Internal system clock 0: XIN selected
0 RW
selection bit
(high-speed mode)
(CM7) (See note2)
1: XCIN–XCOUT selected
or FSCIN input selected
(low-speed mode)
Note 1: This bit is set to “1” after the reset release.
2: XCIN-XCOUT and FSCIN are switched over using Clock
Control Register 2 (address 021116) bit 2.
Address 00FC16
Interrupt Request Register 1
b7 b6 b5 b4 b3 b2 b1 b0
Interrupt request register 1 (IREQ1) [Address 00FC16]
B
Name
Functions
0 _{Timer 1 interrupt request} 0 : No interrupt request issued
bit (TM1R)
1 : Interrupt request issued
1 Timer 2 interrupt request 0 : No interrupt request issued
bit (TM2R)
1 : Interrupt request issued
2 Timer 3 interrupt request 0 : No interrupt request issued
bit (TM3R)
1 : Interrupt request issued
3 Timer 4 interrupt request 0 : No interrupt request issued
bit (TM4R)
1 : Interrupt request issued
4 OSD interrupt
request bit (OSDR)
0 : No interrupt request issued
1 : Interrupt request issued
5 VSYNC interrupt request 0 : No interrupt request issued
bit (VSCR)
1 : Interrupt request issued
6 INT3 external interrupt
request bit (IN3R)
0 : No interrupt request issued
1 : Interrupt request issued
7 Nothing is assigned. This bit is a write disable bit.
When this bit is read out, the value is “0.”
✽: “0” can be set by software, but “1” cannot be set.
Afrer reset R W
0
R✽
0
R✽
0
R✽
0
R✽
0
R✽
0
R✽
0
R✽
0
R—
Rev.1.01 2003.11.13 page 122 of 130