ZUSBOPTSC01ZAC datasheet(140/402 Pages) ZILOG

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LIN-UART

P R E L I M I N A R Y

PS024604-1005

Z8 Encore!® Motor Control Flash MCUs

Product Specification

118

The Driver Enable to START bit set-up time is calculated as follows:

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 contains a unique reg-

ister 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.

Multiprocessor Mode

The LIN-UART features a MULTIPROCESSOR (9-bit) mode that uses an extra (9th) 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 illustrated in Figure 15. The character format is:

Figure 14. LIN-UART Driver Enable Signal Timing

(shown with 1 Stop Bit and Parity)

ð DE to Start Bit Setup Time(s) ð

Baud Rate (Hz)

Data Field

Start

Idle State

of Line

Stop Bit(s)

Bit 0

Bit 1

Bit 2

Bit 3

Bit 4

Bit 5

Bit 6

Bit 7

Parity

lsb

msb

ZUSBOPTSC01ZAC 数据表(PDF) 140 Page - Zilog, Inc.

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