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| 型號(hào)： | MC68B912B32FU8 |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-Bit Microcontroller |
| 中文描述： | 16-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP80 |
| 封裝： | QFP-80 |
| 文件頁(yè)數(shù)： | 81/128頁(yè) |
| 文件大小： | 748K |
| 代理商： | MC68B912B32FU8 |
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MC68HC912B32
MC68HC912B32TS/D
MOTOROLA
81
Full count register access should take place in one clock cycle. A separate read/write for high byte and
low byte will give a different result than accessing them as a word.
Read or write anytime.
Read anytime. Write only in special mode (SMODN = 0)
TCBYP — Timer Divider Chain Bypass
0 = Normal operation
1 = The 16-bit free-running timer counter is divided into two 8-bit halves and the prescaler is by-
passed. The clock drives both halves directly.
PCBYP — Pulse Accumulator Divider Chain Bypass
0 = Normal operation
1 = The 16-bit pulse accumulator counter is divided into two 8-bit halves and the prescaler is by-
passed. The clock drives both halves directly.
PORTT can be read anytime. When configured as an input, a read will return the pin level. When con-
figured as output, a read will return the latched output data.
NOTE
Writes do not change pin state when the pin is configured for timer output. The min-
imum pulse width for pulse accumulator input should always be greater than two
module clocks due to input synchronizer circuitry. The minimum pulse width for the
input capture should always be greater than the width of two module clocks due to
input synchronizer circuitry.
PACNT
— 16-Bit Pulse Accumulator Count Register
$00A2–$00A3
Bit 7
6
5
4
3
2
1
Bit 0
Bit 15
14
13
12
11
10
9
Bit 8
Bit 7
6
5
4
3
2
1
Bit 0
RESET:
0
0
0
0
0
0
0
0
TIMTST
— Timer Test Register
$00AD
Bit 7
6
5
4
3
2
1
Bit 0
0
0
0
0
0
0
TCBYP
PCBYP
RESET:
0
0
0
0
0
0
0
0
PORTT
— Timer Port Data Register
$00AE
Bit 7
6
5
4
3
2
1
Bit 0
PT7
PT6
PT5
PT4
PT3
PT2
PT1
PT0
TIMER
I/OC7
I/OC6
I/OC5
I/OC4
I/OC3
I/OC2
I/OC1
I/OC0
PA
PAI
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