tmp88fw45afg TOSHIBA Semiconductor CORPORATION, tmp88fw45afg Datasheet - Page 122

• Manufacturer Part Number: tmp88fw45afg
• Description: 8 Bit Microcontroller Tlcs-870/x Series
• Manufacturer: TOSHIBA Semiconductor CORPORATION

11.2
TimerCounter Control
11.2
Timer Register and Control Register
TC3DRA
TC3DRB
(001CH)
(001DH)
(001EH)
TC3CR
(TC3DRA and TC3DRB).
Note 1: fc: High-frequency clock [Hz], *: Don’t care
Note 2: Set the operating mode and source clock when TimerCounter stops (TC3CR<TC3S> = 0).
Note 3: To set the timer registers, the following relationship must be satisfied.
Note 4: Auto-capture (TC3CR<ACAP>) can be used only in the timer and event counter modes.
Note 5: When the read instruction is executed to TC3CR, the bit 5 and 7 are read as a don’t care.
Note 6: Do not program TC3DRA when the timer is running (TC3CR<TC3S> = 1).
Note 7: When the STOP mode is entered, the start control (TC3CR<TC3S>) is cleared to 0 automatically, and the timer
The TimerCounter 3 is controlled by the TimerCounter 3 control register (TC3CR) and two 8-bit timer registers
TimerCounter Control
TC3DRA > 1 (Timer/event counter mode)
stops. After the STOP mode is exited, TC3CR<TC3S> must be set again to use the timer counter.
7
7
ACAP
TC3CK
ACAP
TC3M
TC3S
6
6
Auto capture control
TC3 start control
TC3 source clock select
[Hz]
TC3 operating mode se-
lect
5
5
TC3S
4
4
3
3
Page 108
0: -
1: Auto capture
0: Stop and counter clear
1: Start
0: Timer/event counter mode
1: Capture mode
000
001
010
011
100
101
110
111
TC3CK
2
2
1
1
DV1CK=0
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
13
12
11
10
9
8
7
External clock (TC3pin input)
TC3M
0
0
NORMAL, IDLE mode
Read/Write (Initial value: 1111 1111)
Read only (Initial value: 1111 1111)
(Initial value: *0*0 0000)
DV1CK=1
TMP88FW45AFG
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
14
13
12
11
10
9
8
R/W
R/W
R/W
R/W