參數(shù)資料
型號: UPD75212A
廠商: NEC Corp.
英文描述: 4-BIT SINGLE-CHIP MICROCOMPUTER
中文描述: 4位單片機(jī)
文件頁數(shù): 23/70頁
文件大?。?/td> 516K
代理商: UPD75212A
23
μ
PD75212A
Fig. 5-6 Timer/Pulse Generator Block Diagram (PWM Pulse Generation Mode)
f
x
TPGM1
TPGM3
8
8
MODH
MODL
MODH (8)
PPO
TPGM5
TPGM7
INTTPG
1/2
MODL
7-2
(6)
Internal Bus
Modulo Register H (8)
Modulo Register L (6)
Frequency Divider
Modulo Latch (14)
PWM Pulse Generator
Selector
Output Buffer
(IRQTPG Set Signal)
2
15
f
X
(2)
(
= 7.81 ms : at 4.19 MHz operation)
5.7
SERIAL INTERFACE
The
μ
PD75212A serial interface has the following functions.
Clocked 8-bit send/receive operation (simultaneous send/receive)
Clocked 8-bit serial bus operation (data input/output from the SO pin. N-ch open-drain SO output)
Start LSB/MSB switching
The above functions facilitate data communication with another microcomputer of
μ
PD7500 series and 78K series
via serial bus and coupling with peripheral devices.
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