Z8F082ASH020SC Datasheet, PDF (119/244 Pages) Zilog, Inc. – Z8 Encore XP-R F08xA Series with eXtended Peripherals

Z8 Encore! XP^® F08xA Seriess
Product Specification
101
Table 66. UART Address Compare Register (U0ADDR)
BITS
7
6
5
4
3
2
1
0
FIELD
COMP_ADDR
RESET
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
ADDR
F45H
COMP_ADDR—Compare Address
This 8-bit value is compared to incoming address bytes.
UART Baud Rate High and Low Byte Registers
The UART Baud Rate High and Low Byte registers (Tables 67 and 68) combine to create
a 16-bit baud rate divisor value (BRG[15:0]) that sets the data transmission rate (baud
rate) of the UART.
Table 67. UART Baud Rate High Byte Register (U0BRH)
BITS
7
6
5
4
3
2
1
0
FIELD
BRH
RESET
1
1
1
1
1
1
1
1
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
ADDR
F46H
Table 68. UART Baud Rate Low Byte Register (U0BRL)
BITS
FIELD
RESET
R/W
ADDR
7
6
5
4
3
2
1
0
BRL
1
1
1
1
1
1
1
1
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
F47H
The UART data rate is calculated using the following equation:
UART Baud Rate (bits/s) = _{1----6----×}--S---Uy---s-A-t--e-R--m---T---C--B---l-ao---uc---k-d----F-R---r-a-e--t-q-e--u--D--e--ni--v--c-i-y-s--o--(-r-H---V-z---)-a---l-u----e-
For a given UART data rate, calculate the integer baud rate divisor value using the follow-
ing equation:
PS024705-0405
PRELIMINARY
UART