Datasheet

RL78/L12 CHAPTER 30 ELECTRICAL SPECIFICATIONS (A, G: T
A = -40 to +85°C)
R01UH0330EJ0200 Rev.2.00 883
Dec 13, 2013
UART mode connection diagram (during communication at different potential)
TxDq
RxDq
Rx
Tx
V
b
R
b
User's device
RL78 microcontroller
UART mode bit width (during communication at different potential) (reference)
TxDq
RxDq
Baud rate error tolerance
Baud rate error tolerance
Low-bit width
High-/Low-bit width
High-bit width
1/Transfer rate
1/Transfer rate
Remarks 1. R
b[Ω]:Communication line (TxDq) pull-up resistance,
Cb[F]: Communication line (TxDq) load capacitance, Vb[V]: Communication line voltage
2. q: UART number (q = 0, 1), g: PIM and POM number (g = 1)
3. f
MCK: 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, 01))
<R>