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PC87591S-VPC датащи(PDF) 83 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
номер детали PC87591S-VPC
подробное описание детали  LPC Mobile Embedded Controllers
PDF  437 Pages
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производитель  NSC [National Semiconductor (TI)]
домашняя страница  http://www.national.com
Logo NSC - National Semiconductor (TI)

PC87591S-VPC датащи(HTML) 83 Page - National Semiconductor (TI)

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4.0 Embedded Controller Modules (Continued)
Revision 1.07
83
www.national.com
4.1.10 BIU Registers
For a summary of the abbreviations used for Register Type, see “Register Abbreviations and Access” on page 34.
BIU Register Map
BIU Configuration Register (BCFG)
The BCFG register controls the configuration of common features to all zones. On reset, this register is initialized to 0716.
Location: Index 00 F98016
Type: R/W
Mnemonic
Register Name
Type
BCFG
BIU Configuration
R/W
IOCFG
I/O Zone Configuration
R/W
SZCFGn
Static Zone Configuration
R/W
Bit
76543210
Name
Reserved
ISTL
OBR
EWR
Reset
00000111
Bit
Description
0
EWR (Early Write).
0: Late write
1: Early write
1
OBR (Observability). Determines if the address and status of internal accesses are observable.
0: Not observable (no toggle of external buses)
1: Observable (external buses toggle)
2
ISTL (Internal Stall). Determines if the internal bus is stalled while the BIU is busy.
0: Internal bus activity not stalled when BIU is busy
1: Stall internal bus activity when the external bus is busy
7-3
Reserved.



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