M16CSLASH29 datasheet(379/499 Pages) RENESAS

379 / 499 page

20. Flash Memory Version

page 355

Table 20.8 Pin Descriptions (Flash Memory Standard Serial I/O Mode)

NOTES:

___________

1. When using standard serial I/O mode 1, to input “H” to the TxD pin is necessary while the RESET pin is held “L”.

Therefore, connect this pin to VCC via a resistor. Adjust the pull-up resistor value on a system not to affect a data

transfer after reset, because this pin changes to a data-output pin

2. Set the following, either or both.

_____

-Connect the CE pin to VCC.

_____

-Connect the RP pin to VSS and P16 pin to VCC.

Descriptio

VCC,VSS

Apply the voltage guaranteed for Program and Erase to Vcc pin and 0

V to Vss pin.

CNVSS

Connect to Vcc pin.

RESET

XIN

Connect a ceramic resonator or crystal oscillator between XIN and

XOUT pins. To input an externally generated clock, input it to XIN pin

and open XOUT pin.

XOUT

AVCC, AVSS

VREF

Connect AVss to Vss and AVcc to Vcc, respectively.

Enter the reference voltage for AD conversion.

P00 to P07

Input “H” or “L” signal or leave open.

P10 to P15, P17

Input “H” or “L” signal or leave open.

P30 to P37

Input "H" or “L” level signal or leave open.

P60 to P63

Input "H" or “L” level signal or leave open.

P64

Standard serial I/O mode 1: BUSY signal output pin

Standard serial I/O mode 2: Monitor signal output pin for boot program

operation check

P65

P66

Serial data input pin

P67

Serial data output pin

P70 to P77

Input “H” or “L” signal or leave open.

P80 to P84,

P87

Input “H” or “L” signal or leave open.

P90 to P92,

P95 to P97

Input “H” or “L” signal or leave open.

Name

Power input

CNVS

Reset input

Clock input

Clock output

Analog power supply input

Reference voltage input

Input port P0

Input port P1

Input port P3

Input port P6

BUSY output

SCLK input

RxD input

TxD output

Input port P7

Input port P8

Input port P9

I/O

P100 to P107

Input “H” or “L” signal or leave open.

Input port P10

P85

RP input

Connect this pin to Vss while RESET pin is “L”. (2)

Standard serial I/O mode 1: Serial clock input pin

Standard serial I/O mode 2: Input “L”.

Reset input pin. While RESET pin is “L”, wait for td(ROC).

(1)

P20 to P27

Input port P2

Input "H" or “L” level signal or leave open.

P86

CE input

Connect this pin to Vcc while RESET pin is “L”. (2)

P16

Input port P1

Connect this pin to Vcc while RESET pin is “L”. (2)

P93

Input “H” or “L” signal or leave open.

Input port P93

“H” signal is output for specific time. Input “H” signal or leave open.

I/O

T-ver./V-ver.

Normal-ver.

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