Renesas RL78/G1P Hardware User Manual page 752

RL78/G1P
27.5 Peripheral Functions Characteristics
AC Timing Test Points
27.5.1 Serial array unit
(1) During communication at same potential (UART mode)
= 40 to +85C, 2.7 V  V
(T
A
Parameter Symbol
Note 1
Transfer rate
UART mode connection diagram (during communication at same potential)
UART mode bit width (during communication at same potential) (reference)
TxDq
RxDq
Notes 1. Transfer rate in the SNOOZE mode is 4800 bps only.
2. The maximum operating frequencies of the CPU/peripheral hardware clock (f
HS (high-speed main) mode: 32 MHz (2.7 V ≤ V
LS (low-speed main) mode: 8 MHz (2.7 V ≤ V
Remarks 1. q: UART number (q = 0)
2. f : Serial array unit operation clock frequency
MCK
(Operation clock to be set by the CKSmn bit of serial mode register mn (SMRmn). m: Unit number,
n: Channel number (mn = 00, 01))
R01UH0895EJ0100 Rev.1.00
Nov 29, 2019
V /V
IH OH
V /V
IL OL
 3.6 V, V
= 0 V)
DD SS
Conditions
2.7 V ≤ V ≤ 3.6 V
DD
Theoretical value of the maximum transfer rate
f = f Note 2
MCK CLK
TxDq
RL78 microcontroller
RxDq
CHAPTER 27 ELECTRICAL SPECIFICATIONS
V
Test points
V
HS (high-speed
main) Mode
MIN.
Rx
User's device
Tx
1/Transfer rate
High-/Low-bit width
Baud rate error tolerance
≤ 3.6 V)
DD
≤ 3.6 V).
DD
/V
IH OH
/V
IL OL
LS (low-speed main)
Mode
TYP. MIN. MAX.
f /6 f
MCK MCK
5.3 1.3
) are:
CLK
Unit
/6 bps
Mbps
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