tmp89fm42a TOSHIBA Semiconductor CORPORATION, tmp89fm42a Datasheet - Page 176

• Manufacturer Part Number: tmp89fm42a
• Description: 8 Bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

RB002
Timer counter A0 register AH
Timer counter A0 register AL
Timer counter A0 register BH
Timer counter A0 register BL
TA0DRAH
TA0DRAL
TA0DRBH
TA0DRBL
(0x002D)
(0x002E)
(0x0030)
(0x002F)
Note 1: When a write instruction is executed on TA0DRAL (TA0DRBL), the set value does not become effective immediately, but
Note 2: The timer counter A0 register is not writable in the pulse width measurement mode.
is temporarily stored in the temporary buffer. Subsequently, when a write instruction is executed on the higher-level register,
TA0DRAH (TA0DRBH), the 16-bit set values are collectively stored in the double buffer or TA0DRAL/H. When setting data
to the timer counter A0 register, be sure to write the data into the lower level register and the higher level in this order.
Read/Write
Read/Write
Read/Write
Read/Write
Bit Symbol
Bit Symbol
Bit Symbol
Bit Symbol
After reset
After reset
After reset
After reset
15
15
1
7
1
1
7
1
14
14
1
6
1
1
6
1
13
13
1
5
1
1
5
1
Page 157
12
12
1
4
1
1
4
1
TA0DRAH
TA0DRAL
TA0DRBH
TA0DRBL
R/W
R/W
R/W
R/W
11
11
1
3
1
1
3
1
10
10
1
2
1
1
2
1
9
1
1
1
9
1
1
1
TMP89FM42A
8
1
0
1
8
1
0
1