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13 bus configuration register, Bus configuration register, Iscc user manual – Zilog Z16C35 User Manual

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ISCC

User Manual

UM011002-0808

145

Figure 5–67. Transmit DMA Address Registers (Continued)

5.6.13 Bus Configuration Register

The first write to the ISCC after a hardware reset is always to the Bus Configuration Reg-
ister. The register is shown in Figure 5-38. The Bus Configuration Register is not affected
by any reset function other than a hardware reset and is accessible only after the hardware
reset. Note that when writing to the Bus Configuration Register, /AS and A1/A//B are used
to program certain bus interface features. Refer to the Bus Interface Unit description for
details.

(E)

Address: 11100 (Bits 0-7)

D6

D7

D5 D4 D3 D2 D1 D0

Tx B Addr0

Tx B Addr1

Tx B Addr2

Tx B Addr3

Tx B Addr4

Tx B Addr5

Tx B Addr6

Tx B Addr7

(F)

D6

D7

D5 D4 D3 D2 D1 D0

Tx B Addr8

Tx B Addr9

Tx B Addr10

Tx B Addr11

Tx B Addr12

Tx B Addr13

Tx B Addr14

Tx B Addr15

(G)

Address: 11110 (Bits 16-23)

D6

D7

D5 D4 D3 D2 D1 D0

Tx B Addr16

Tx B Addr17

Tx B Addr18

Tx B Addr19

Tx B Addr20

Tx B Addr21

Tx B Addr22

Tx B Addr23

(H)

Address: 11111 (Bits 24-31)

D6

D7

D5 D4 D3 D2 D1 D0

Address: 11101 (Bits 8-15)

Tx B Addr24

Tx B Addr25

Tx B Addr26

Tx B Addr27

Tx B Addr28

Tx B Addr29

Tx B Addr30

Tx B Addr31

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UM011002-0808