tmp88cs34ng TOSHIBA Semiconductor CORPORATION, tmp88cs34ng Datasheet - Page 75

• Manufacturer Part Number: tmp88cs34ng
• Description: Cmos 8-bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

TC3DRA
(0018H)
TC3DRB
(0019H)
TC3CR
(001AH)
PMPXCR
(0027H)
2.7.2
Note 1: fc: High-frequency clock [Hz], *: Don’t care
Note 2: Set the mode and the source clock when the TC3 stops (TC3S = 0).
Note 3: Values to be loaded to timer register 3A must satisfy the following condition.
Note 4: Auto-capture can be used only in the timer and event counter mode.
Note 5: Before setting TC3DRA or switching the operating mode, stop the TC3 (TC3S = 0).
Note 6: When STOP mode is started, timer counter is stopped and TC3 start control (TC3S) is cleared to “0”
Note 7: TC3CR, TCESCR is a write-only register and must not be used with any of read-modify-write instructions.
Note 8: Always write “0” to bit 7 in PMPXCR.
“0”
7
Control
8-bit timer registers (TC3DRA and TC3DRB) and port multiplex control register
(PMPXCR).
7
7
TC3ES
TC3CK
TC3M
ACAP
TC3S
The timer/counter 3 is controlled by a timer/counter 3 control register (TC3CR) and two
ACAP
CHS
6
6
6
automatically. Set TC3S to “1” after STOP mode is released for restarting timer counter.
TC3DRA > 0 (in the timer and event counter mode)
TC3 input control
TC3
operating mode set
TC3
source clock select [Hz]
TC3
start control
Auto-capture control
5
5
5
Figure 2.7.2 Timer Register 3 and TC3 Control Register
TC3S
4
4
4
3
3
3
TC3K
2
2
2
TC4ES TC3ES
88CS34-75
1
1
1
0: Normal
1: Invert
0: Timer/event counter
1: Capture
0: Stop and clear
1: Start
0: −
1: Auto-capture enable
000
001
010
011
100
101
110
111
TC3M
0
0
0
DV1CK = 0
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
External clock (TC3 pin input)
Read/Write (Initial value: 1111 1111)
Read only (Initial value: 1111 1111)
13
12
11
10
(Initial value: 00** **00)
(Initial value: *0*0 0000)
9
8
7
NORMAL, IDLE mode
DV1CK = 1
TMP88CS34/CP34
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
14
13
12
11
10
9
8
2007-09-12
Write
only
Write
only