HD6417034 Datasheet, PDF (158/691 Pages) Renesas Technology Corp – SuperH RISC ENGINE SH7032 AND SH7034

• Bit 15 (Parity Error Flag (PEF)): When a parity check is carried out, PEF indicates whether a
parity error has occurred. 0 indicates that no parity error has occurred; 1 indicates that a parity
error has occurred.
Bit 15: PEF
0
1
Description
No parity error
(Initial value)
Cleared by reading PEF after it has been set to 1, then writing 0 in
PEF
Parity error has occurred
• Bit 14 (Parity Output Force (PFRC)): PFRC selects whether to produce a forced parity output
for testing the parity error check function. When cleared to 0, there is no forced output; when
set to 1, it produces a forced high-level output from the DPH and DPL pins when data is
output, regardless of the parity.
Bit 14: PFRC
0
1
Description
Parity output not forced
High output forced
(Initial value)
• Bit 13 (Parity Polarity (PEO)): PEO selects even or odd parity. When cleared to 0, parity is
even; when set to 1, parity is odd.
Bit 13: PEO
0
1
Description
Even parity
Odd parity
(Initial value)
• Bits 12 and 11 (Parity Check Enable Bits 1 and 0 (PCHK1 and PCHK0)): These bits determine
whether or not parity is checked and generated, and select the check and generation spaces.
Bit 12: PCHK1
0
1
Bit 11: PCHK0
0
1
0
1
Description
Parity not checked and not generated (Initial value)
Parity checked and generated only in DRAM area
Parity checked and generated in DRAM area and area
2
Reserved
• Bits 10–0 (Reserved): These bits are always read as 0. The write value should always be 0.
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