1

Board Description and Memory Maps

Table 1-16. BBRAM Configuration Area Memory Map (Continued)

Address Range

Description

Size (Bytes)

 

 

 

$FFFC1FD6 - $FFFC1FDD

IP_d Board Serial Number

8

 

 

 

4FFFC1FDE - $FFFC1FE5

IP_d Board PWB

8

 

 

 

$FFFC1FE6 - $FFFC1FF6

Reserved

65

 

 

 

$FFFC1FF7

Checksum

1

 

 

 

Note IP_c and IP_d are not used on 200/300-Series MVME172 modules.

Table 1-17. TOD Clock Memory Map

Address

 

 

 

Data Bits

 

 

 

Function

 

 

 

 

 

 

 

 

 

 

D7

D6

D5

D4

D3

D2

D1

D0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

$FFFC1FF8

W

R

S

 

Calibration

 

Control

 

 

 

 

 

 

 

 

 

 

 

 

$FFFC1FF9

ST

--

--

--

--

--

--

--

Seconds

00

 

 

 

 

 

 

 

 

 

 

 

$FFFC1FFA

x

--

--

--

--

--

--

--

Minutes

00

 

 

 

 

 

 

 

 

 

 

 

$FFFC1FFB

x

x

--

--

--

--

--

--

Hour

00

 

 

 

 

 

 

 

 

 

 

 

$FFFC1FFC

x

FT

x

x

x

--

--

--

Day

01

 

 

 

 

 

 

 

 

 

 

 

$FFFC1FFD

x

x

--

--

--

--

--

--

Date

01

 

 

 

 

 

 

 

 

 

 

 

$FFFC1FFE

x

x

x

--

--

--

--

--

Month

01

 

 

 

 

 

 

 

 

 

 

 

$FFFC1FFF

--

--

--

--

--

--

--

--

Year

00

 

 

 

 

 

 

 

 

 

 

 

Notes W = Write Bit R = Read Bit S = Signbit ST = Stop Bit

FT = Frequency Test x = Must be set to 0

1-42

Computer Group Literature Center Web Site

Page 60
Image 60
Motorola MVME172 manual TOD Clock Memory Map, FT = Frequency Test x = Must be set to, Address Data Bits Function