Z8F1680SH020SG Datasheet, PDF (197/412 Pages) Zilog, Inc. – High-Performance 8-Bit Microcontrollers

Z8 Encore! XP^® F1680 Series
Product Specification
172
12.3.6.1. Multiprocessor Control Register
When MSEL = 000b, the Multiprocessor Control Register, shown in Table 90, provides
control for UART MULTIPROCESSOR Mode, IRDA Mode and Baud Rate Timer Mode
as well as other features that can apply to multiple modes.
Table 90. Multiprocessor Control Register (U0CTL1 = F43H with MSEL = 000b)
Bit
7
6
Field
MPMD1 MPEN
Reset
0
0
R/W
R/W
R/W
Address
Note: R/W = Read/Write.
5
MPMD0
0
R/W
4
3
MPBT DEPOL
0
0
R/W
R/W
F43H, F4BH
2
BRGCTL
0
R/W
1
RDAIRQ
0
R/W
0
IREN
0
R/W
Bit Position
[7,5]
MPMD[1:0]
[6]
MPEN
[4]
MPBT
[3]
DEPOL
Value Description
MULTIPROCESSOR (9-bit) Mode
00 The LIN-UART generates an interrupt request on all data and address bytes.
01 The LIN-UART generates an interrupt request only on received address bytes.
10 The LIN-UART generates an interrupt request when a received address byte
matches the value stored in the Address Compare Register and on all
successive data bytes until an address mismatch occurs.
11 The LIN-UART generates an interrupt request on all received data bytes for
which the most recent address byte matched the value in the Address
Compare Register.
Multiprocessor Enable
This bit is used to enable MULTIPROCESSOR (9-bit) Mode.
0
Disable MULTIPROCESSOR (9-bit) Mode.
1
Enable MULTIPROCESSOR (9-bit) Mode.
Multiprocessor Bit Transmit
This bit is applicable only when MULTIPROCESSOR (9-bit) Mode is enabled.
0
Send a 0 in the multiprocessor bit location of the data stream (9th bit).
1
Send a 1 in the multiprocessor bit location of the data stream (9th bit).
Driver Enable Polarity
0
DE signal is active High.
1
DE signal is active Low.
PS025015-1212
PRELIMINARY
LIN-UART