7.2.2. Coprocessor handshake encoding

Table 7.1 shows how the handshake signals CHSDE[1:0] and CHSEX[1:0] are encoded.

Table 7.1. Handshake encoding

[1:0]

Meaning

10

ABSENT

00

WAIT

01

GO

11

LAST

Note

If an external coprocessor is not attached in the ARM946E-S embedded system, the CHSDE[1:0] and CHSEX[1:0] handshake inputs must be tied off to indicate ABSENT.

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