Motorola MVME1X7P - Manual (Page 111)

LCSR Programming Model
http://www.motorola.com/computer/literature 2-21
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4. The operations possible on the register bits, defined as follows:
5. The state of the bit following a reset, defined as follows:
Table 2-2 shows a summary of the LCSRs.
R This bit is a read-only status bit.
R/W This bit is readable and writable.
W/AC This bit can be set and it is automatically cleared. This bit can
also be read.
C Writing a 1 to this bit clears this bit or another bit. This bit reads
0.
S Writing a 1 to this bit sets this bit or another bit. This bit reads 0.
P The bit is affected by powerup reset.
S The bit is affected by SYSRESET.
L The bit is affected by local reset.
X The bit is not affected by reset.