S e r i a l C o n t r o l l e r M o d u l e

 

 

 

 

 

 

 

 

 

 

 

Bits

Access

Mnemonic

Reset

Description

 

 

 

 

 

 

 

D15

R/C

RBRK

0

Receive break interrupt pending

 

 

 

 

Indicates that a UART receive break condition

 

 

 

 

has been found. Once set, the RBRK bit

 

 

 

 

remains set until acknowledged. RBRK is

 

 

 

 

acknowledged by writing a 1 to this same bit

 

 

 

 

position in this register.

 

 

 

 

The RBRK status condition can be

 

 

 

 

programmed to generate an interrupt by

 

 

 

 

setting the related IE bit in Serial Channel

 

 

 

 

Control Register A.

 

 

 

 

 

 

D14

R/C

RFE

0

Receive framing error interrupt pending

 

 

 

 

Indicates that a receive framing error condition

 

 

 

 

has been found. Once set, the RFE bit remains

 

 

 

 

set until acknowledged. RFE is acknowledged

 

 

 

 

by writing a 1 to this same bit position in this

 

 

 

 

register.

 

 

 

 

The RFE status condition can be programmed

 

 

 

 

to generate an interrupt by setting the related

 

 

 

 

IE bit in Serial Channel Control Register A.

 

 

 

 

 

 

D13

R/C

RPE

0

Receive parity error interrupt pending

 

 

 

 

Indicates that a receive parity error condition

 

 

 

 

has been found. Once set, the RPE field

 

 

 

 

remains set until acknowledged. RPE is

acknowledged by writing to this same bit position in this register.

The RPE status condition can be programmed to generate an interrupt by setting the related IE bit in Serial Channel Control Register A.

Table 89: Serial Channel Status Register A bit definition

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Digi NS7520 manual Receive break interrupt pending, Receive framing error interrupt pending