UPD75218 datasheet(21/62 Pages) NEC

Nome de Peças	UPD75218

Descrição Electrónicos	4-BIT SINGLE-CHIP MICROCOMPUTER

PDF	62 Pages

Scroll/Zoom	100%

Fabricante Electrônico	NEC [NEC]

Página de início	http://www.nec.com/

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21 / 62 page

µPD75218

Fig. 5-6 Timer/Pulse Generator Block Diagram (PWM Pulse Generation Mode)

Note

7.81 ms when the microcomputer operates at 4.19 MHz.

5.7

SERIAL INTERFACE

The serial interface has the following functions:

• Clock synchronous 8-bit send/receive operation (simultaneous send/receive)

• Clock synchronous 8-bit serial bus operation (data input/output from the SO pin. N-ch open-drain SO output)

• Start LSB/MSB switching

These functions facilitate data communication with another microcomputer of

µPD7500 series or 78K series via

a serial bus and coupling with peripheral devices.

TPGM1

TPGM3

MODH

MODL

MODH (8)

PPO

TPGM5

TPGM7

INTTPG

1/2

MODL7-2 (6)

Internal bus

Modulo register H (8)

Modulo register L (8)

Frequency divider

Modulo latch (14)

PWM pulse generator

Selector

Output buffer

(IRQTPG set signal)

(2)

(

= 5.46 ms : when fX is 6.0 MHz)Note

215

UPD75218 Folha de dados(PDF) 21 Page - NEC