Sun Microsystems EDT S16A User Manual

S16A User’s Guide

Registers

EDT, Inc.  October, 1996

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The addresses listed in the figure below are offsets from the SBus slot base address. Obtain the SBus base
address from the SBus host documentation. The following sections describe the S16A registers in detail.

0x0006.0000

reserved

not used

0x0004.00C4

uart_data

0x0004.00C0

uart_csr

not used

0x0004.0080

dac_ctrl

not used

0x0004.0044

dio_data

0x0004.0040

dio_dir

0x0004.003C

nxt_cnt_ctl_3

0x0004.0038

cur_cnt_3

0x0004.0034

nxt_dma_add_3

0x0004.0030

cur_dma_add_3

0x0004.000C

nxt_cnt_ctl_0

0x0004.0008

cur_cnt_0

0x0004.0004

nxt_dma_add_0

0x0004.0000

cur_dma_add_0

not used

0x0002.0008

xpg_stat

not used

0x0002.0004

xpg_din

not used

0x0002.0000

xpg_reg

not used

not used

0x0000.FFFC

S16A ROM

0x0000.0000

Byte

0

1

2

3

Word

0

1