UPD78F1502AGK-GAK-AX Datasheet, PDF (918/1031 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcontrollers

78K0R/Lx3
CHAPTER 31 ELECTRICAL SPECIFICATIONS
(2) Serial interface: Serial array unit (1/18)
(TA = −40 to +85°C, 1.8 V ≤ VDD = EVDD ≤ 5.5 V, VSS = EVSS = AVss = 0 V)
(a) During communication at same potential (UART mode) (dedicated baud rate generator output)
Parameter
Transfer rate
Symbol
Conditions
fCLK = 20 MHz, fMCK = fCLK
MIN.
TYP.
MAX.
fMCK/6
3.3
Unit
bps
Mbps
UART mode connection diagram (during communication at same potential)
TxDq
78K0R/Lx3
microcontrollers
RxDq
Rx
User's device
Tx
TxDq
RxDq
UART mode bit width (during communication at same potential) (reference)
1/Transfer rate
High-/Low-bit width
Baud rate error tolerance
Caution Select the normal input buffer for RxDq and the normal output mode for TxDq by using the PIMg and
POMx registers.
Remarks 1.
2.
q: UART number (q = 0 to 3), g: PIM number (g = 1, 7), x: POM number (x = 1, 7, 8)
fMCK: Serial array unit operation clock frequency
(Operation clock to be set by the CKSmn bit of the SMRmn register. m: Unit number (m = 0, 1),
n: Channel number (n = 0, 2))
R01UH0004EJ0501 Rev.5.01
902
Jun 20, 2011