R5F10WMDA datasheet(90/126 Pages) RENESAS

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RL78/L13

3. ELECTRICAL SPECIFICATIONS (G: INDUSTRIAL APPLICATIONS TA =

−40 to +105°C)

R01DS0168EJ0210 Rev.2.10

Aug 12, 2016

Page 90 of 123

3.5 Peripheral Functions Characteristics

AC Timing Test Points

VIH/VOH

VIL/VOL

Test points

VIH/VOH

VIL/VOL

3.5.1 Serial array unit

(1) During communication at same potential (UART mode)

(TA =

−40 to +105°C, 2.4 V ≤ VDD ≤ 5.5 V, VSS = 0 V)

Parameter

Symbol

Conditions

HS (high-speed main) Mode

Unit

MIN.

MAX.

Transfer rateNote

fMCK/12

bps

Theoretical value of the maximum transfer rate

fCLK = 24 MHz, fMCK = fCLK

2.0

Mbps

Note

Transfer rate in the SNOOZE mode is 4800 bps only.

Caution

Select the normal input buffer for the RxDq pin and the normal output mode for the TxDq pin by

using port input mode register g (PIMg) and port output mode register g (POMg).

UART mode connection diagram (during communication at same potential)

RL78

microcontroller

TxDq

RxDq

User device

UART mode bit width (during communication at same potential) (reference)

Baud rate error tolerance

High-/Low-bit width

1/Transfer rate

TxDq

RxDq

Remarks 1.

q: UART number (q = 0 to 3), g: PIM and POM number (g = 0, 1, 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 to 03, 10 to 13))

R5F10WMDA Datasheet(PDF) 90 Page - Renesas Technology Corp

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