RL78 datasheet(83/100 Pages) RENESAS

83 / 100 page

RL78/G14

2. ELECTRICAL SPECIFICATIONS

R01DS0053EJ0100 Rev. 1.00

Page 83 of 97

Feb 21, 2012

Caution

The pins mounted depend on the product. Refer to 1.3.1 30-pin products to 1.3.10 100-pin products.

CSI mode serial transfer timing (slave mode) (during communication at different potential)

(When DAPmn = 0 and CKPmn = 0, or DAPmn = 1 and CKPmn = 1.)

CSI mode serial transfer timing (slave mode) (during communication at different potential)

(When DAPmn = 0 and CKPmn = 1, or DAPmn = 1 and CKPmn = 0.)

Caution

Select the TTL input buffer for the SIp pin and SCKp pin and the N-ch open drain output (EVDD0 tolerance) mode

for the SOp pin by using port input mode register g (PIMg) and port output mode register g (POMg).

Remark 1. p: CSI number (p = 00, 01, 10, 20, 30, 31), m: Unit number (m = 0, 1), n: Channel number (n = 0 to 3),

g: PIM and POM number (g = 0, 1, 3 to 5, 14)

Remark 2.

CSI01 of 48-, 52-, 64-pin products, and CSI11 and CSI21 cannot communicate at different potential. Use other CSI for

communication at different potential.

Also, communication at different potential cannot be performed during clock synchronous serial communication with the

slave select function.

SIp

SOp

SCKp

Input data

Output data

tKCY2

tKH2

tKL2

tSIK2

tKSI2

tKSO2

Input data

Output data

SIp

SOp

SCKp

tKCY2

tKL2

tKH2

tSIK2

tKSI2

tKSO2

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