SH7052 datasheet(35/919 Pages) RENESAS

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1.3.2

Pin Functions

Table 1.2 summarizes the pin functions.

Table 1.2

Pin Functions

Type

Symbol

Pin No.

I/O

Name

Function

Power supply

19, 27, 79,

123, 131,

183

Input

Power supply

Power supply for chip-internal

and system ports (

RES, MD2

to MD0, FWE,

HSTBY, NMI,

CK, EXTAL, XTAL). Connect

all V

CC pins to the system

power supply. The chip will

not operate if there are any

open pins.

CC1

10, 42, 194,

205

Input

Port power

supply 1

Power supply for bus ports

(ports E, F, and H). Connect

all PV

CC1 pins to the system

bus power supply. The chip

will not operate if there are

any open pins.

CC2

74, 95, 115,

141, 158,

174

Input

Port power

supply 2

Power supply for peripheral

module ports (ports A, B, C,

D, G, J, K, the AUD, and

WDTOVF). Connect all PV

CC2

pins to the system peripheral

module power supply. The

chip will not operate if there

are any open pins.

12, 21, 25,

44, 76, 81,

97, 117,

125, 133,

143, 160,

176, 185,

196, 207

Input

Ground

For connection to ground.

Connect all V

SS pins to the

system ground. The chip will

not operate if there are any

open pins.

Flash memory FWE

Input

Flash write

enable

Connected to ground in

normal operation.

Apply V

CC during on-board

programming.

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