UPD78F1502AGK-GAK-AX Datasheet, PDF (457/1031 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcontrollers

78K0R/Lx3
CHAPTER 14 SERIAL ARRAY UNIT
14.2 Configuration of Serial Array Unit
Serial array unit includes the following hardware.
Item
Shift register
Buffer register
Serial clock I/O
Serial data input
Serial data output
Serial data I/O
Control registers
Table 14-1. Configuration of Serial Array Unit
Configuration
8 bits
Lower 8 bits of serial data register mn (SDRmn)^Note
SCK00, SCK01, SCK10, SCK20 pins (for 3-wire serial I/O), SCL10, SCL20 pins (for simplified
I²C)
SI00, SI01, SI10, SI20 pins (for 3-wire serial I/O), RXD0, RXD1, RXD2 pins (for UART),
RXD3 pin (for UART supporting LIN-bus)
SO00, SO01, SO10, SO20 pins (for 3-wire serial I/O), TXD0, TXD1, TXD2 pins (for UART),
TXD3 pin (for UART supporting LIN-bus), output controller
SDA10, SDA20 pins (for simplified I²C)
<Registers of unit setting block>
• Peripheral enable register 0 (PER0)
• Serial clock select register m (SPSm)
• Serial channel enable status register m (SEm)
• Serial channel start register m (SSm)
• Serial channel stop register m (STm)
• Serial output enable register m (SOEm)
• Serial output register m (SOm)
• Serial output level register m (SOLm)
• Input switch control register (ISC)
• Noise filter enable register 0 (NFEN0)
<Registers of each channel>
• Serial data register mn (SDRmn)
• Serial mode register mn (SMRmn)
• Serial communication operation setting register mn (SCRmn)
• Serial status register mn (SSRmn)
• Serial flag clear trigger register mn (SIRmn)
• Port input mode registers 1, 7 (PIM1, PIM7)
• Port output mode registers 1, 7, 8 (POM1, POM7, POM8)
• Port mode registers 1, 5, 7, 8 (PM1, PM5, PM7, PM8)
• Port registers 1, 5, 7, 8 (P1, P5, P7, P8)
Note The lower 8 bits of the serial data register mn (SDRmn) can be read or written as the following SFR, depending
on the communication mode.
• CSIp communication … SIOp (CSIp data register)
• UARTq reception … RXDq (UARTq receive data register)
• UARTq transmission … TXDq (UARTq transmit data register)
• IICr communication … SIOr (IICr data register)
Remark m: Unit number (m = 0, 1), n: Channel number (n = 0 to 3),
p: CSI number (p = 00, 01, 10, 20), q: UART number (q = 0 to 3), r: IIC number (r = 10, 20)
R01UH0004EJ0501 Rev.5.01
441
Jun 20, 2011