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MAXQ612/MAXQ622 User’s Guide

4-2 Maxim Integrated

SECTION 4: SYSTEM REGISTER DESCRIPTION

Registers currently defined in the MAXQ612/MAXQ622 system register map are described in Tables 4-1, 4-2, and 4-3.

Table 4-1. System Register Map

Note 1: Register names that appear in italics indicate read-only registers. Register names that appear in bold indicate 16-bit registers.

Note 2: Registers with indexes 8h and higher can only be accessed as destinations by using the prefix register. Similarly, registers

with indexes 10h and higher can only be accessed as sources through the prefix register.

Note 3: All undefined or unused indexes (indicated by a “—”) are either used for op-code implementation or reserved for future

expansion, and should not be accessed explicitly. Accessing these locations as registers can have deterministic effects, but the

effects are probably not the intended ones.

MODULE SPECIFIER

INDEX WITHIN

MODULE

06h 07h 08h 09h 0Ah 0Bh 0Ch 0Dh 0Eh 0Fh

00h — — AP

A[0] Acc PFX[0] IP

— — —

01h — — APC

A[1] A[AP] PFX[1]

—

— —

02h — — PRIV

A[2]

—

PFX[2]

—

— —

03h — — PRIVT0

A[3]

—

PFX[3]

— — OFFS

DP[0]

04h — — PSF

A[4]

—

PFX[4]

— —

DPC

—

05h — — IC

A[5]

—

PFX[5]

— —

—

06h — — PRIVT1

A[6]

—

PFX[6]

—

LC[0]

GRL —

07h — — —

A[7]

—

PFX[7]

—

LC[1] BP DP[1]

08h — —

SC A[8]

— — — —

GRS

—

09h — —

IPR0 A[9]

— — — — GRH —

0Ah — —

IPR1 A[10]

— — — — GRXL —

0Bh — — PRIVF

A[11]

— — — —

FP CP

0Ch — — ULDR

A[12]

— — — — — —

0Dh — — UAPP

A[13]

— — — — — —

0Eh — — CKCN

A[14]

— — — — — —

0Fh — — WDCN

A[15]

— — — — — —

10h — — — — — — — — — —

11h — — — — — — — — — —

12h — — — — — — — — — —

13h — — — — — — — — — —

14h — — — — — — — — — —

15h — — — — — — — — — —

16h — — — — — — — — — —

17h — — — — — — — — — —

18h — — — — — — — — — —

19h — — — — — — — — — —

1Ah — — — — — — — — — —

1Bh — — — — — — — — — —

1Ch — — — — — — — — — —

1Dh — — — — — — — — — —

1Eh — — — — — — — — — —

1Fh — — — — — — — — — —

1 2 ... 53 54 55 56 57 58 59 60 61 62 63 ... 254 255

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