Uart0, Uart1 Registers - Fujitsu MB90390 Series Hardware Manual

CHAPTER 19 UART0, UART1
19.3

UART0, UART1 Registers

The UART0, UART1 have the following four registers each:
• Serial mode control register
• Status register
• Input data register/output data register
• Rate and data register
■ UART0, UART1 Registers
Serial mode control register
Address: ch.0 000020
ch.1 000024
Status register
Address: ch.0 000021
ch.1 000025
Read/write
Initial value
Input data register/
Output data register
Address: ch.0 000022
ch.1 000026
Rate and data register
Address: ch.0 000023
ch.1 000027
Read/write
Initial value
314
bit 7 6
H
H
PEN SBL
Read/write (R/W) (R/W)
(0) (0)
Initial value
bit 15 14
H
H RDRF ORFE
(R) (R)
(0) (0)
7 6
bit
H
H
D7 D6
Read/write (R/W) (R/W)
(X) (X)
Initial value
15 14
bit
H
H BCH RC3 RC2
(R/W) (R/W) (R/W)
(0) (0)
5 4 3 2
MC1 MC0 SMDE RFC
(R/W) (R/W) (R/W) (W)
(0) (0) (0) (1)
13 12 11 10
PE TDRE RIE TIE
(R) (R) (R/W) (R/W)
(0) (1) (0) (0)
5 4 3 2
D5 D4 D3 D2
(R/W) (R/W) (R/W) (R/W)
(X) (X) (X) (X)
13 12 11 10
RC1 RC0 BCH0
(R/W) (R/W) (R/W)
(0) (0) (0) (0)
1 0
UMC0
SCKE SOE
UMC1
(R/W) (R/W)
(0) (0)
9 8
USR0
RBF TBF
USR1
(R) (R)
(0) (0)
1 0
UIDR0(read)
UODR0(write)
D1 D0
UIDR1(read)
UODR1(write)
(R/W) (R/W)
(X) (X)
9 8
URD0
P D8
URD1
(R/W) (R/W)
(0) (X)