Z8F6421PM020SC Datasheet, PDF (52/299 Pages) Zilog, Inc. – High Performance 8-Bit Microcontrollers Z8 Encore-R 64K Series

Z8 Encore!^® 64K Series
Z8 Encore!
32
UART1 Control 1
U0CTL1 (F4BH - Read/Write)
D7 D6 D5 D4 D3 D2 D1 D0
Infrared Encoder/Decoder Enable
0 = Infrared endec is disabled
1 = Infrared endec is enabled
Received Data Interrupt Enable
0 = Received data and errors generate
interrupt requests
1 = Only errors generate interrupt
requests. Received data does not.
Baud Rate Registers Control
Refer to UART chapter for operation
Driver Enable Polarity
0 = DE signal is active High
1 = DE signal is active Low
Multiprocessor Bit Transmit
0 = Send a 0 as the multiprocessor bit
1 = Send a 1 as the multiprocessor bit
Multiprocessor Mode [0]
See Multiprocessor Mode [1] below
Multiprocessor (9-bit) Enable
0 = Multiprocessor mode is disabled
1 = Multiprocessor mode is enabled
Multiprocessor Mode [1]
with Multiprocess Mode bit 0:
00 = Interrupt on all received bytes
01 = Interrupt only on address bytes
10 = Interrupt on address match and
following data
11 = Interrupt on data following an
address match
UART1 Status 1
U0STAT1 (F4CH - Read Only)
D7 D6 D5 D4 D3 D2 D1 D0
Mulitprocessor Receive
Returns value of last multiprocessor bit
New Frame
0 = Current byte is not start of frame
1 = Current byte is start of new frame
Reserved
UART1 Address Compare
U0ADDR (F4DH - Read/Write)
D7 D6 D5 D4 D3 D2 D1 D0
UART1 Address Compare [7:0]
UART1 Baud Rate Generator High Byte
U0BRH (F4EH - Read/Write)
D7 D6 D5 D4 D3 D2 D1 D0
UART1 Baud Rate divisor [15:8]
UART1 Baud Rate Generator Low Byte
U1BRL (F4FH - Read/Write)
D7 D6 D5 D4 D3 D2 D1 D0
UART1 Baud Rate divisor [7:0]
I2C Data
I2CDATA (F50H - Read/Write)
D7 D6 D5 D4 D3 D2 D1 D0
I2C data [7:0]
I2C Status
I2CSTAT (F51H - Read Only)
D7 D6 D5 D4 D3 D2 D1 D0
NACK Interrupt
0 = No action required to service NAK
1 = START/STOP not set after NAK
Data Shift State
0 = Data is not being transferred
1 = Data is being transferred
Transmit Address State
0 = Address is not being transferred
1 = Address is being transferred
Read
0 = Write operation
1 = Read operation
10-Bit Address
0 = 7-bit address being transmitted
1 = 10-bit address being transmitted
Acknowledge
0 = Acknowledge not
transmitted/received
1 = For last byte, Acknowledge was
transmitted/received
Receive Data Register Full
0 = I2C has not received data
1 = Data register contains received data
Transmit Data Register Empty
0 = Data register is full
1 = Data register is empty
PS019915-1005
Control Register Summary