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Chapter 8
8-bit Timer
Timer 16 Mode Register (TM16MD: 0x0000A1C4) [8-bit Access Register]
bp
7
Flag
TM16
CNE
At reset
0
Access
R/W
bp
Flag
7
TM16CNE
6
TM16LDE
5-3
-
TM16CK2
2-0
TM16CK1
TM16CK0
When the count clock source is set to IOCLK/128, set the TM16IN flag of the external prescaler con-
trol register TMEXPSC8 to "1" and the EXPSCNE flag to " 1".
..
..
VIII - 28
Control Registers
6
5
4
3
TM16
-
-
-
LDE
0
0
0
0
R/W
R
R
R
Description
Timer operation enable
Timer initialization
-
Count clock source selection
2
1
0
TM16
TM16
TM16
CK2
CK1
CK0
0
0
0
R/W
R/W
R/W
Set condition
0: Operation disabled
1: Operation enabled
0: Normal operation
1: Initialization
TM16BR value is loaded into TM16BC.
-
000: IOCLK
001: IOCLK/8
010: IOCLK/32
011: Cascading with timer 15
100: Timer 14 underflow
101: Timer 15 underflow
110: Setting prohibited
111: IOCLK/128
When 1/8 IOCLK and 1/32 IOCLK are used, the prescaler control reg-
ister (TM1417PSC) should be set.
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