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Mitsubishi Motors DS5000TK User Manual

Page 102

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USER’S GUIDE

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102

RPC STATUS REGISTER – STATUS (ADDRESS 0DAH) Figure 12–5

ST7

ST6

ST5

ST4

IAO

FO

IBF

OBF

Bit Description:

RPS.7–4:

General purpose status bits that can be written by the DS5001/2 and can be
read by the external host.

Initialization:

Cleared when RPCON=0.

Read Access:

Can be read by the DS5001/2 and host CPU when RPC mode is invoked.

Write Access:

Can be written by the DS5001/2 when RPC mode is invoked.

RPS.3:

IA0
Stores the value of the external system A0 for the last DBBIN Write when
a valid write occurs (as determined by the IBF flag).

Initialization:

Cleared when RPC=0.

Read Access:

Can be read by the DS5001/2 and host CPU when in RPC mode.

Write Access:

Automatically written when a valid DBBIN Write occurs. Cannot be written
otherwise.

RPS.2:

F0
General purpose flag written by the DS5001/2 and read by the external host.

Initialization:

Cleared when RPC=0.

Read Access:

Can be read by the DS5001/2 and host CPU when in RPC mode.

Write Access:

Can be written by the DS5001/2 when in RPC mode.

RPS.1:

IBF
Input Buffer Full Flag is set following a write by the external host, and is
cleared following a read of the DBBIN by the DS5001/2.

Initialization:

Cleared when RPC=0.

Read Access:

Can be read by the DS5001/2 and host CPU when in RPC mode.

Write Access:

Written automatically as part of the RPC communication. Cannot be set by
the application software.

RPS.0:

OBF
Output Buffer Full Flag is set following a write of the DBBOUT by the
DS5001/2, and is cleared following a read of the DBBOUT by the external
host.

Initialization:

Cleared when RPC=0.

Read Access:

Can be read by the DS5001/2 and host CPU when in RPC mode.

Write Access:

Written automatically as part of the RPC communication. Cannot be set by
the application software.

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