Datasheet

MC9S08EL32 Series and MC9S08SL16 Series Data Sheet, Rev. 3

Freescale Semiconductor 191

12.1.3 Block Diagram

Figure 12-3. SLIC Module Block Diagram

12.2 External Signal Description

12.2.1 SLCTx — SLIC Transmit Pin

The SLCTx pin serves as the serial output of the SLIC module.

12.2.2 SLCRx — SLIC Receive Pin

The SLCRx pin serves as the serial input of the SLIC module. This input feeds into the digital receive filter

block which filters out noise glitches from the incoming data stream.

12.3 Register Definition

12.3.1 SLIC Control Register 1 (SLCC1)

SLIC control register 1 (SLCC1) contains bits used to control various basic features of the SLIC module,

including features used for initialization and at runtime.

STATUS REGISTERS

CONTROL REGISTERS

BUS CLOCK

MESSAGE BUFFER — 9 BYTES

SLCID

SLCD7, SLCD6, SLCD5, SLCD4

SHADOW REGISTER

1 BYTE

LIN PROTOCOL STATE MACHINE

(PSM)

DIGITAL RX FILTER

SLCRx

SLCTx

SLCSV

SLCSV AND SLCF

DIGITAL RX FILTER

PRESCALER (RXFP)

SLIC CLOCK

SLCD3, SLCD2, SLCD1, SLCD0