UPD78F0411GA-GAM-AX Datasheet, PDF (323/564 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

CHAPTER 13 SERIAL INTERFACE UART0
Remarks 1. fXCLK0: Frequency of base clock selected by the TPS01 and TPS00 bits
2. fPRS: Peripheral hardware clock frequency
3. k: Value set by the MDL04 to MDL00 bits (k = 8, 9, 10, ..., 31)
4. ×: Don’t care
(4) Port function register 1 (PF1)
This register sets the pin functions of P13/TxD0/KR4/<TxD6> pin.
PF1 is set using a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation sets PF1 to 00H.
Remark The functions within arrowheads (< >) can be assigned by setting the input switch control register (ISC).
Figure 13-5. Format of Port Function Register 1 (PF1)
Address: FF20H After reset: 00H R/W
Symbol
7
6
5
4
3
2
1
0
PF1
0
0
0
0
PF13
0
0
0
PF13
0
1
Used as P13
Used as TxD0 or TxD6
Port (P13), UART0, and UART6 output specification
User’s Manual U18698EJ1V0UD
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