RL78G12_15 Datasheet, PDF (48/110 Pages) Renesas Technology Corp – RENESAS MCU

RL78/G12
2. ELECTRICAL SPECIFICATIONS (A, D: TA = −40 to +85°C)
CSI mode connection diagram (during communication at different potential)
<Slave>
SCKp
RL78
microcontroller ^SIp
SOp
Vb
Rb
SCK
SO ^{User's device}
SI
Remarks 1.
2.
3.
Rb [Ω]: Communication line (SOp) pull-up resistance, Cb [F]: Communication line (SOp) load capacitance,
Vb [V]: Communication line voltage
p: CSI number (p = 00, 20), m: Unit number (m = 0, 1), n: Channel number (n = 0)
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). m: Unit number, n: Channel number (mn = 00, 10))
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
R01DS0193EJ0200 Rev.2.00
Sep 06, 2013
Page 48 of 106