RL78G12_15 Datasheet, PDF (90/110 Pages) Renesas Technology Corp – RENESAS MCU

RL78/G12
3. ELECTRICAL SPECIFICATIONS (G: TA = −40 to +105°C)
CSI mode connection diagram (during communication at different potential)
<Slave>
SCKp
RL78
microcontroller ^SIp
SOp
Vb
Rb
SCK
SO ^{User's device}
SI
CSI mode serial transfer timing (slave mode) (during communication at different potential)
(When DAPmn = 0 and CKPmn = 0, or DAPmn = 1 and CKPmn = 1.)
t KL2
t KCY2
t KH2
SCKp
SIp
t SIK2
t KSI2
t KSO2
Input data
SOp
Output data
Remarks 1. Rb [Ω]: Communication line (SOp) pull-up resistance, Cb [F]: Communication line (SOp) load capacitance,
Vb [V]: Communication line voltage
2. p: CSI number (p = 00, 20), m: Unit number (m = 0, 1), n: Channel number (n = 0)
3. fMCK: Serial array unit operation clock frequency
(Operation clock to be set by the serial clock select register m (SPSm) and the CKSmn bit of serial mode
register mn (SMRmn))
R01DS0193EJ0200 Rev.2.00
Sep 06, 2013
Page 90 of 106