Oki ML63611, User Manual

Page: 159 / 271

ML63611 User’s Manual
Chapter 12 Serial Port (SIO)
12 – 7
OPTION B (D): 1.5 V (3.0 V), With regulator
circuit for LCD bias
OPTION A (C): 1.5 V (3.0 V), Without regulator
circuit for LCD bias
(4) Receive control registers 0/1 (SRCON0, SRCON1)
SRCON0 and SRCON1 are 4-bit special function registers (SFRs) controlling serial port receive operation.
SRCON0 and SRCON1 are initialized to “0” at system reset.
bit 3: SREN (Serial Reception ENable bit)
This bit specifies receive operation disable/enable. After receive is enabled in the synchronous
mode, this bit is reset to “0” after receiving one frame of data. In the UART mode it does not
change.
bit 2, 1: SRL1 (Serial Reception Length select bit 1),
SRL0 (Serial Reception Length select bit 0)
These bits specify the receive data length.
bit 0: SRMOD (Serial Reception MODe bit)
This bit specifies the serial port receive operation mode.
SREN SRL1 SRL0
SRMOD
Receive disable/enable select
0 : Receive disable (initial value)
1 : Receive enable
Receive data length select
bit 2 bit 1 Data length
0 0 : 5 bits (initial value)
0 1 : 6 bits
1 0 : 7 bits
1 1 : 8 bits
Receive mode select
0 : UART mode (initial value)
1 : Synchronous mode
SRCON0 (0AAH)
(R/W)
bit 3 bit 2 bit 1 bit 0