參數(shù)資料
型號(hào): MB90P634APF
元件分類: 微控制器/微處理器
英文描述: 16-BIT, OTPROM, 16 MHz, MICROCONTROLLER, PQFP100
封裝: PLASTIC, QFP-100
文件頁(yè)數(shù): 52/107頁(yè)
文件大小: 1599K
代理商: MB90P634APF
49
MB90630A Series
8. Clock Output Control Register
The clock output outputs the divided machine clock.
(1) Register Configuration
(a) [bit 3] CKEN
CKOT output enable bit
(b) [bits 2, 1, 0] FRQ2, FRQ1, FRQ0
These bits select the output frequency of the clock.
MODE
Operation
0
Operate as a standard port.
1
Operate as the CKOT output.
FRQ2
FRQ1
FRQ0
Output clock
φ = 16 MHz
φ = 8 MHz
φ = 4 MHz
000
φ/21
125 ns
250 ns
500 ns
001
φ/22
250 ns
500 ns
1
s
010
φ/23
500 ns
1
s2 s
011
φ/24
1
s2 s4 s
100
φ/25
2
s4 s8 s
101
φ/26
4
s8 s16 s
110
φ/27
8
s16 s32 s
111
φ/28
16
s32 s64 s
Clock control register
Address:
0003EH
7654321
————
CKEN
FRQ2
FRQ1
FRQ0
0
(R/W)
(—)
(0)
(—)
(0)
CLKR
Read/write
Initial value
bit
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