M37221M4H_15 Datasheet, PDF (109/114 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER

M37221M4H/M6H/M8H/MAH–XXXSP/FP M37221EASP/FP
Address 00FB16
CPU Mode Register
b7 b6 b5 b4 b3 b2 b1 b0
1 1 1 1 1 0 0 _{CPU mode register (CM) [Address 00FB16]}
B
Name
0, 1 Fix these bits to “0.”
Functions
2 ^{Stack page selection 0: 0 page}
bit (CM2) (See note) 1: 1 page
3 to 7 Fix these bits to “1.”
After reset R W
Indeterminate R W
1 RW
Indeterminate R W
Note: This bit is set to “1” after the reset release.
Addresses 00FC16
Interrupt Request Register 1
b7 b6 b5 b4 b3 b2 b1 b0
Interrupt request register 1 (IREQ1) [Address 00FC16]
B
Name
Functions
After reset R W
0 Timer 1 interrupt
request bit (TM1R)
0 : No interrupt request issued 0 R ✽
1 : Interrupt request issued
1 Timer 2 interrupt
request bit (TM2R)
0 : No interrupt request issued 0 R ✽
1 : Interrupt request issued
2 Timer 3 interrupt
0 : No interrupt request issued 0 R ✽
request bit (TM3R) 1 : Interrupt request issued
3 Timer 4 interrupt
request bit (TM4R)
0 : No interrupt request issued 0 R ✽
1 : Interrupt request issued
4 _{OSD interrupt request} 0 : No interrupt request issued _{0 R} ✽
bit (CRTR)
1 : Interrupt request issued
5 VSYNC interrupt
0 : No interrupt request issued 0 R ✽
request bit (VSCR) 1 : Interrupt request issued
6 Multi-master I²C-BUS interface 0 : No interrupt request issued 0 R ^✽
interrupt request bit (IICR) 1 : Interrupt request issued
7 INT3 external interrupt
request bit (IT3R)
0 : No interrupt request issued 0
1 : Interrupt request issued
R✽
✽: “0” can be set by software, but “1” cannot be set.
Rev.1.00 Oct 01, 2002 page 107 of 110
REJ03B0134-0100Z