USER'S GUIDE

USE OF THE RPC MODE Figure 12±3

P2.0/A0

P2.1/CE

P2.2/RD

P2.3/WR

CONTROL BUS

P2.4/OBF

P2.5/IBF

P2.6/DRQ

P2.7/DACK

P0.0/D0

P0.1/D1

P0.2/D2

P0.3/D3

DATA BUSP0.4/D4

P0.5/D5

P0.6/D6

P0.7/D7

PORT 2

PORT 0

USE OF THE RPC MODE Figure 12±4

 

 

 

 

 

 

 

 

 

 

 

 

CS

 

 

RD

 

 

WR

A0

REGISTER

 

 

 

 

 

 

 

 

 

 

0

 

0

 

1

 

0

DATA OUT

 

 

 

 

 

 

 

 

 

 

0

 

0

 

1

 

1

STATUS

 

 

 

 

 

 

 

 

 

 

0

 

1

 

0

 

0

DATA IN

 

 

 

 

 

 

 

 

 

 

0

 

1

 

0

 

1

COMMAND IN

 

 

 

 

 

 

 

 

 

 

 

1

 

 

X

 

 

X

X

NO REGISTER

 

 

 

 

 

 

 

 

 

 

 

RPC INTERRUPTS

RPC mode provides an additional interrupt to the stan- dard Secure Microcontroller set. An Input Buffer Full Interrupt (IBF) will be performed (if enabled) when data is written to the DBBIN from a host. When enabled, this interrupt replaces the Timer 1 interrupt (vector location

1BH). Regardless of whether this interrupt is enabled, future writes are locked out of the Secure Microproces- sor until the DBBIN is ready. The device provides two outputs to interrupt the host system as needed. These are Output Buffer Full (OBF) and Input Buffer Empty

(IBF).

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Mitsubishi DS5000TK, DS907x SIP manual USE of the RPC Mode ±3, USE of the RPC Mode ±4, RPC Interrupts, Command, No Register