參數(shù)資料
型號(hào): μPD789187
廠商: NEC Corp.
英文描述: 8 Bit Single Chip Microcontrollers(8 位單片微控制器)
中文描述: 8位單片機(jī)微控制器(8位單片微控制器)
文件頁數(shù): 46/146頁
文件大?。?/td> 630K
代理商: ΜPD789187
Preliminary Product Information
46
μ
PD789186, 789187, 789196, 789197
Figure 6-17. 8-Bit Timer/Event Counter 82 Block Diagram
Internal bus
Internal bus
8-bit compare
register 82 (CR82)
8-bit timer counter
82 (TM82)
Match
CLEAR
OVF
R
S
INV Q
Q
TCE82
PWME82
TCL821TCL820
TOE82
f
XT
f
X
/2
7
f
X
/2
5
8-bit timer mode control register 82 (TMC82)
latch
TO82/BZO90/
P33/INTP3
PM33
INTTM81
BZO90
output
Note
S
Note
See
Figure 6-11
.
(1) 8-bit compare register 8n (CR8n)
A value specified in CR8n is compared with the count in 8-bit timer register 8n (TM8n). If they match, an interrupt
request (INTTM8n) is issued.
CR8n is manipulated using an 8-bit memory manipulation instruction. Any value from 00H to FFH can be set.
A RESET input makes CR8n undefined.
Remark
n = 0 to 2
(2) 8-bit timer register 8n (TM8n)
TM8n is used to count the number of pulses.
Its contents are read using an 8-bit memory manipulation instruction.
A RESET input clears TM8n to 00H.
Remark
n = 0 to 2
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