Motorola MVME1X7P - Manual (Page 69)

Memory Maps
http://www.motorola.com/computer/literature 1-43
1
Notes W = Write Bit
R = Read Bit
S = Sign Bit
ST = Stop Bit
FT = Frequency Test
x = Must be set to 0
The data structure of the configuration bytes starts at $FFFC1EF8 and is
as follows.
$FFFC1F4E - $FFFC1F55 Mezz. Board 2 PWB 8
$FFFC1F56 - $FFFC1F5D Mezz. Board 2 Serial Number 8
$FFFC1F5E - $FFFC1FF6 Reserved 153
$FFFC1FF7 Checksum 1
Table 1-14. TOD Clock Memory Map
Address Data Bits Function
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
$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
Table 1-13. BBRAM Configuration Area Memory Map
Address Range Description Size
(Bytes)