Motorola MVME135 User Manual page 103

I
SUPPORT INFORMATION
TABLE 5-4. CONNECTOR J4 CONNECT! ONS (cont.)
Pin
Number
52
53
54
55
56
5 -18
Signal
Mnemonic
GND
PWRITE
NC
PAREN*
WWp*
Si gna 1 Name and Descri pt i on
GROUND
PHYSICAL WRITE - PWRITE controls the parity
generate/detect mode on the DRAM mezzanine
module.
NOT CONNECTED.
DRAM PARITY ENABLE - This signal, when asserted,
allows the DRAM mezzan i ne modul e to report pari ty
errors on detection via the MEZZERR* signal.
WRITE WRONG PARITY - This signal, when asserted,
forces the DRAM mezzan i ne modul e into a
diagnostic mode where parity is intentionally
wri tten incorrectly for test i ng purposes.