Datasheet
RL78/G14 2. ELECTRICAL SPECIFICATIONS (A, D: TA = -40 to +85 C)
R01DS0053EJ0200 Rev. 2.00 Page 93 of 187
Oct 25, 2013
Note 1. Transfer rate in the SNOOZE mode: MAX. 1 Mbps
Note 2. Use it with EVDD0 Vb.
Note 3. When DAPmn = 0 and CKPmn = 0, or DAPmn = 1 and CKPmn = 1. The SIp setup time becomes “to SCKp↓” when
DAPmn = 0 and CKPmn = 1, or DAPmn = 1 and CKPmn = 0.
Note 4. When DAPmn = 0 and CKPmn = 0, or DAPmn = 1 and CKPmn = 1. The SIp hold time becomes “from SCKp↓” when
DAPmn = 0 and CKPmn = 1, or DAPmn = 1 and CKPmn = 0.
Note 5. When DAPmn = 0 and CKPmn = 0, or DAPmn = 1 and CKPmn = 1. The delay time to SOp output becomes “from
SCKp↑” 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 (VDD tolerance (When
30- to 52-pin products)/EV
DD tolerance (when 64- to 100-pin products)) mode for the SOp pin by using port input
mode register g (PIMg) and port output mode register g (POMg). For V
IH and VIL, see the DC characteristics with
TTL input buffer selected.
CSI mode connection diagram (during communication at different potential)
Remark 1. Rb[]: Communication line (SOp) pull-up resistance, Cb[F]: Communication line (SOp) load capacitance,
V
b[V]: Communication line voltage
Remark 2. 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 3. fMCK: Serial array unit operation clock frequency
(Operation clock to be set by the CKSmn bit of serial mode register mn (SMRmn).
m: Unit number, n: Channel number (mn = 00, 01, 02, 10, 12, 13))
Remark 4. 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.
SCKp
SOp
User’s device
SCK
SI
SIp SO
Vb
Rb
<Slave>
RL78 microcontroller