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CPU

User Manual

UM001604-0108 Address Space

Working Register Group 0 in ERF Bank 0 consists of the registers for Z8

General-Pur-

pose Registers and ports. Table 9 lists the registers within this group.

C Reserved R12

B Reserved R11

A Reserved R10

9 Reserved R9

8 Reserved R8

7 Reserved R7

6 Reserved R6

5 Reserved R5

4 Reserved R4

3 Reserved R3

2 SPI Control (SCON) R2

1 SPI Tx/Rx Data (Roxburgh) R1

0 SPI Compare (SCOMP) R0

Table 9. ERF Bank 0 WR Group 0

F General-Purpose Register R15

E General-Purpose Register R14

D General-Purpose Register R13

C General-Purpose Register R12

B General-Purpose Register R11

A General-Purpose Register R10

9 General-Purpose Register R9

8 General-Purpose Register R8

7 General-Purpose Register R7

6 General-Purpose Register R6

5 General-Purpose Register R5

Table 8. ERF Bank C WR Group 0 (Continued)

ZiLOG Z8 Series User Manual

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