pc87591l National Semiconductor Corporation, pc87591l Datasheet - Page 34
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pc87591l
Manufacturer Part Number
pc87591l
Description
Lpc Mobile Embedded Controllers
Manufacturer
National Semiconductor Corporation
Datasheet
1.PC87591L.pdf
(437 pages)
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1.0 Introduction
Register Abbreviations and Access
The following abbreviations are used to indicate the Register Type:
R/W= Read/Write
R= The Read portion of a register, where a read from a specific address returns the value of a specific register; a
write to the same address is to a different register.
W= The Write portion of a register as described above for ‘R’.
RO= Read Only
WO= Write Only
R/W1C= Read/Write 1 to Clear. Writing 1 to a bit clears it to 0. Writing 0 has no effect.
10 0000
00 FB00
00 FC00
00 FB00
00 FC00
00 0000
00 F000
00 F880
00 FA00
01 0000
00 1000
00 F000
00 F880
00 FA00
01 0000
10 0000
00 F900
00 F980
00 0000
00 F900
00 F980
1. See Appendix A on page 408 for details of the implemented registers.
2. Available in 176-pin package only.
1. The Expansion Memory size is limited to 1 Mbyte and is aliased between addresses above and
2. See Appendix A on page 408 for details of the implemented registers.
below 01 0000
Address
Address
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
1F FFFF
00 DFFF
00 DFFF
00 F90A
0F FFFF
00 F90A
0F FFFF
1F FFFF
00 F7FF
00 F8FF
00 F98F
00 FA7F
00 FBFF
00 0FFF
00 F7FF
00 F8FF
00 F98F
00 FA7F
00 FBFF
00 FFFF
00 FFFF
(Continued)
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
.
(Bytes)
(Bytes)
1024K Expansion Memory
1024K Expansion Memory
960K Reserved
960K Expansion Memory
Size
Size
56K
52K
256
256
2K
11
16
1K
4K
2K
11
16
1K
Base Memory
System RAM
Flash Control Registers
Shared BIOS and Security Registers
BIU Registers
DMA Controller Registers1
I/O Expansion
On-chip Module Registers
Base Memory
Base Memory
Expansion Memory
System RAM
Flash Control Registers
Shared BIOS and Security Registers
BIU Registers
DMA Controller Registers1
I/O Expansion
On-chip Module Registers
Table 3. PC87591L Memory Map
Table 2. PC87591E Memory Map
Purpose
Purpose
1
1
34
2
1
1
1
1
1
1
1
Description
Description
IRE & OBD - Internal Flash
DEV - External Base Memory
IRE & OBD
DEV - External Base Memory
IRE & OBD - Internal Flash
DEV - External Base Memory
1
2
Environment
Environment
Revision 1.07
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