S3C4510B Datasheet, PDF (368/422 Pages) Samsung semiconductor – Samsungs S3C4510B 16/32-bit RISC microcontroller is a cost-effective, high-performance microcontroller solution for Ethernet-based systems.

UART
S3C4510B
UART BAUD RATE COUNT AND CLOCK REGISTERS
For test purpose only, the internal baud rate up counters, BRDCNT0 and BRDCNT1, can be directly accessed
using register addressing. In addition, the baud rate clock can be monitored through the UART data set ready
ports, nUADSR.
If the BRDCLKn monitor value is "1", the baud rate clock can be monitored at the nUADSR pin. If it is "0" (its
default value), or if you write a "0" to the BRDCLKn address, the UARD DSR signal output to the nUADSR port
depends on the current setting of UART control register bit 5.
Register
BRDCNT0
BRDCNT1
BRDCLK0
BRDCLK1
Table 10-13. BRDCNTn and BRDCLKn Registers
Offset Address
0xD018
0xE018
0xD01C
0xE01C
R/W
Description
W
UART0 baud rate count register
W
UART1 baud rate count register
W
UART0 baud rate clock monitor
W
UART1 baud rate clock monitor
Reset Value
0x0
0x0
0x0
0x0
Baud Rate Divisor
(UBRDIVn)
Compare Logic
Match Generator
Baud Rate Clock
Baud Rate up Counter
(URDCNTn)
MCLK
BRDCLKn
nUADSR
Chip Internal
Chip External
Figure 10-8. UART Baud Rate Clock Test Scheme
10-14