Panasonic MN103S - Timer Mode Registers

Chapter 8
8-bit Timer
VIII - 18 Control Registers
8.2.4 Timer Mode Registers
Timer mode registers are readable/writable 8-bit registers that control timer 0 to timer 7 and timer 14 to 17.
■ Timer 0 Mode Register (TM0MD: 0x0000A180) [8-bit Access Register]
..
When the count clock source is set to IOCLK/128, set the TM0IN flag of the external prescaler control
register TMEXPSC8 to “1” and the EXPSCNE flag to “ 1”.
..
bp 76543210
Flag TM0
CNE
TM0
LDE
---TM0
CK2
TM0
CK1
TM0
CK0
At reset 00000000
Access R/W R/W R R R R/W R/W R/W
bp Flag Description Set condition
7TM0CNE
Timer operation enable 0: Operation disabled
1: Operation enabled
6TM0LDE
Timer initialization 0: Normal operation
1: Initialization
TM0BR value is loaded into TM0BC.
5-3 - - -
2-0
TM0CK2
TM0CK1
TM0CK0
Count clock source selection 000: IOCLK
001: IOCLK/8
010: IOCLK/32
011: Setting prohibited
100: Setting prohibited
101: Timer 1 underflow
110: Timer 2 underflow
111: IOCLK/128
When 1/8 IOCLK and 1/32 IOCLK are used, the prescaler control reg-
ister (TM03PSC) should be set.