pc87591l National Semiconductor Corporation, pc87591l Datasheet - Page 315
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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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Revision 1.07
Host Controller Interface Modules
Lock SuperI/O Host Access Register (LKSIOHA)
This register controls locking of host access to the Host-Controlled modules. All bits of this register, except bit 1, are cleared
on reset. The bit 1 reset value is defined by RTC Lock Default bit in “Protection Word” on page 226.
Location: 00 FCE4
Type: R/W
SuperI/O Access Lock Violation Register (SIOLV)
This register provides an error indication when a host lock violation occurs on Host-Controlled modules access.
Location: 00 FCE6
Type: R/W1C
Bit
Name
Reset
Bit
Name
Reset
Bit
Name
Reset
Bit
Name
Reset
15-2
15-2 Reserved.
Bit
Bit
0
1
0
1
LKCFG (Lock Configuration Registers Host Access).
0: Host processor access to the Configuration registers is enabled
1: Host processor access to the Configuration registers is blocked
LKRTCHA (Lock Real-Time Clock (RTC) Host Access).
0: Host processor access to the RTC registers is enabled
1: Host processor access to the RTC registers is blocked
Reserved.
CFGLV (Configuration Register Lock Violation). The bit is set (1) when the host processor attempts to access
the configuration registers while LKFDCHA bit in LKSIOHA register is set.
RTCLV (Real-Time Clock (RTC) Lock Violation). The bit is set (1) when the host processor attempts to access
the RTC while LKRTCHA bit in LKSIOHA register is set.
16
16
15
15
7
0
0
7
0
0
14
14
6
0
0
6
0
0
13
13
5
0
0
5
0
0
(Continued)
Reserved
Reserved
Description
Description
315
12
12
4
0
0
4
0
0
Reserved
Reserved
11
11
3
0
0
3
0
0
10
10
0
2
0
2
0
0
LKRTCHA
see text
RTCLV
1
9
0
1
0
9
0
www.national.com
LKCFG
CFGLV
0
0
8
0
0
0
8
0
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