FDC37C93XAPM View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

Manufacturer

FDC37C93XAPM

Plug and Play Compatible Ultra I/O™ Controller with Soft Power Management

SMSC -> Microchip 

REGISTER/SIGNAL

Table 34 - Reset Function Table

RESET CONTROL

RESET STATE

Interrupt Enable Register

RESET

All bits low

Interrupt Identification Reg. RESET

Bit 0 is high; Bits 1 - 7 low

FIFO Control

RESET

All bits low

Line Control Reg.

RESET

All bits low

MODEM Control Reg.

RESET

All bits low

Line Status Reg.

RESET

All bits low except 5, 6 high

MODEM Status Reg.

RESET

Bits 0 - 3 low; Bits 4 - 7 input

TXD1, TXD2

RESET

High

INTRPT (RCVR errs)

RESET/Read LSR

Low

INTRPT (RCVR Data Ready) RESET/Read RBR

Low

INTRPT (THRE)

RESET/ReadIIR/Write THR Low

OUT2B

RESET

High

RTSB

RESET

High

DTRB

RESET

High

OUT1B

RESET

High

RCVR FIFO

RESET/

FCR1*FCR0/_FCR0

All Bits Low

XMIT FIFO

RESET/

FCR1*FCR0/_FCR0

All Bits Low

81

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