Z8F1680SH020SG Datasheet, PDF (176/412 Pages) Zilog, Inc. – High-Performance 8-Bit Microcontrollers

Z8 Encore! XP^® F1680 Series
Product Specification
151
Figure 22. LIN-UART Driver Enable Signal Timing with One Stop Bit and Parity
The Driver Enable to start bit set-up time is calculated as follows:
1
≤ DE to Start Bit Set-up Time(s) ≤
2
Baud Rate (Hz)
Baud Rate (Hz)
12.1.8. LIN-UART Special Modes
The special modes of the LIN-UART are:
• MULTIPROCESSOR Mode
• LIN Mode
The LIN-UART features a common control register (Control 0) that has a unique register
address and several mode-specific control registers (Multiprocessor Control, Noise Filter
Control and LIN Control) that share a common register address (Control 1). When the
Control 1 address is read or written, the MSEL[2:0] (Mode Select) field of the Mode
Select and Status Register determines which physical register is accessed. Similarly, there
are mode-specific status registers, one of which is returned when the Status 0 Register is
read depending on the MSEL field.
12.1.9. MULTIPROCESSOR Mode
The LIN-UART features a MULTIPROCESSOR (9-bit) Mode that uses an extra (9^th) bit
for selective communication when a number of processors share a common UART bus. In
MULTIPROCESSOR Mode (also referred to as 9-bit mode), the multiprocessor bit (MP)
is transmitted immediately following the 8 bits of data and immediately preceding the stop
bit(s) as displayed in Figure 23.
PS025015-1212
PRELIMINARY
LIN-UART