Details Of Control Registers - Epson S1C17704 Technical Manual

18.9 Details of Control Registers

Address
0x4100 UART_ST UART Status Register
0x4101 UART_TXD UART Transmit Data Register
0x4102 UART_RXD UART Receive Data Register
0x4103 UART_MOD UART Mode Register
0x4104 UART_CTL UART Control Register
0x4105 UART_EXP UART Expansion Register
The following describes each UART register. These are all 8-bit registers.
Note: When setting the registers, be sure to write a 0, and not a 1, for all "reserved bits."
S1C17704 TECHNICAL MANUAL
Table 18.9.1 List of UART Registers
Register name
EPSON
Function
Indicates transfer, buffer and error statuses.
Transmit data
Receive data
Sets transfer data format.
Controls data transfer.
Sets IrDA mode.
18 UART
18-13