em78p510nso32j/s ELAN Microelectronics Corp, em78p510nso32j/s Datasheet - Page 32

• Manufacturer Part Number: em78p510nso32j/s
• Description: 8-bit Microprocessor With Otp Rom
• Manufacturer: ELAN Microelectronics Corp

EM78P510N
8-Bit Microprocessor with OTP ROM
26 •
6.2.37 Bank 3 R5 URC (UART Control Register)
Bit 7 (URTD8): Transmission Data Bit 8
Bits 6~5 (UMODE1~UMODE0): UART Transmission Mode Select Bit
Bits 4~2 (BRATE2~BRATE0): Transmit Baud Rate Select (Tuart=Fc/16)
Bit 1 (UTBE): UART transfer buffer empty flag. Set to 1 when transfer buffer is empty.
Bit 0 (TXE):
URTD8
Bit 7
UMODE1 UMODE0
Bit 6
Reset to 0 automatically when writing to the URTD register. The UTBE
bit will be cleared by hardware when transmission is enabled. The
UTBE bit is read-only. Hence, writing to the URTD register is
necessary to start transmit shifting.
Enable transmission
0 : Disable
1 : Enable
UMODE1 UMODE0
BRATE2 BRATE1 BRATE0
0
0
1
1
0
0
0
0
1
1
1
1
Bit 5
0
1
0
1
0
0
1
1
0
0
1
1
BRATE2
Bit 4
(This specification is subject to change without further notice)
0
1
0
1
0
1
0
1
BRATE1
Bit 3
Product Specification (V1.1) 01.25.2008
Baud Rate
Tuart/104
Tuart/208
Tuart/416
Tuart/13
Tuart/26
Tuart/52
Mode 1 : 7-Bit
Mode 2 : 8-Bit
Mode 3 : 9-Bit
BRATE0
UART Mode
Bit 2
Reserved
Reserved
Timer 1
UTBE
Bit 1
e.g. Fc = 8 MHz
38400
19200
9600
4800
2400
1200
Bit 0
TXE