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SHI
23 22 21 20
SHI Host Transmit
Data Register (HTX)
X:$FFFF93 Write Only
Reset = $xxxxxx
23 22 21 20
SHI Host Receive
Data Register (HRX)
X:$FFFF94 Read Only
Reset = $xxxxxx
SHI Host Receive Data Register (HRX) (FIFO) 10 words deep
Host Transmit Data Register
19 18 17 16
15 14 13 12 11 10
SHI Host Transmit Data Register (HTX)
Host Receive Data Register
19 18 17 16
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
9
8
7
6
5
4
3
2
1
0
0
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