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Chapter 22
Internal RAM Parity Check Function
User’s Manual U16580EE3V1UD00
(2)
Internal RAM parity error address register (RAMPADD)
The RAMPAD register is a 16-bit register that latches the internal RAM address causing the first
parity error after hardware reset was released or RAMERR register was cleared.
This register can be read or written in 16-bit units.
Reset input clears this register to 8000H.
Caution:
Do not read the RAMPADD register, when all internal RAM parity error flags RAEn
(n = 0 to 3) are cleared. If a parity error is detected and the RAMPADD register is read
before the respective RAEn flag is set, the read value might be invalid.
Figure 22-2:
Internal RAM Parity Error Address Register (RAMPADD)
After reset:
8000H
R/W
Address:
FFFFF4C2H
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
RAMPADD
1
RAMPA
DD14
RAMPA
DD13
RAMPA
DD12
RAMPA
DD11
RAMPA
DD10
RAMPA
DD9
RAMPA
DD8
RAMPA
DD7
RAMPA
DD6
RAMPA
DD5
RAMPA
DD4
RAMPA
DD3
RAMPA
DD2
0
0
RAMPAD14 to
RAMPADD2
Internal RAM Parity Error Address
Internal RAM address of the 32-bit word causing the parity error.
Caution:
Bit 15 of the RAMPADD register is always 1. This does not reflect the
correct address bit 15 of the internal RAM, which starts at location
FFF0000H.
Remark:
Bits 0 and 1 of the RAMPADD register are always 0, because the parity check
function is aligned on 32-bit words.
Содержание MuPD70F3187
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Страница 144: ...144 Chapter 3 CPU Functions User s Manual U16580EE3V1UD00 MEMO ...
Страница 192: ...192 Chapter 5 Memory Access Control Function μPD70F3187 only User s Manual U16580EE3V1UD00 MEMO ...
Страница 312: ...312 Chapter 9 16 Bit Timer Event Counter P User s Manual U16580EE3V1UD00 MEMO ...
Страница 534: ...534 Chapter 11 16 bit Timer Event Counter T User s Manual U16580EE3V1UD00 ...
Страница 969: ...969 Chapter 20 Port Functions User s Manual U16580EE3V1UD00 MEMO ...
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Страница 976: ...976 Chapter 22 Internal RAM Parity Check Function User s Manual U16580EE3V1UD00 MEMO ...
Страница 984: ...984 Chapter 23 On Chip Debug Function OCD User s Manual U16580EE3V1UD00 MEMO ...
Страница 1006: ...1006 Chapter 24 Flash Memory User s Manual U16580EE3V1UD00 MEMO ...
Страница 1036: ...1036 Chapter 27 Recommended Soldering Conditions User s Manual U16580EE3V1UD00 MEMO ...
Страница 1046: ...1046 Appendix A Index User s Manual U16580EE3V1UD00 MEMO ...
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