Renesas SH7781 用户手册
11. Local Bus State Controller (LBSC)
Rev.1.00 Jan. 10, 2008 Page 382 of 1658
REJ09B0261-0100
REJ09B0261-0100
11.4.5
CSn PCMCIA Control Register (CSnPCR)
CSnPCR is a 32-bit readable/writable register that specifies the timing for the PCMCIA interface
connected to area n (CSnPCR, n = 5 or 6), the space property, and the assert/negate timing for the
OE and WE signals. Also, areas 5 and 6 in CSnPCR can be set for the first half and second half
individually. The first half of area 5 is allocated from H'1400 0000 to H'15FF FFFF, and the
second half of area 5 is allocated from H'1600 0000 to H'17FF FFFF. The first half of area 6 is
allocated from H'1800 0000 to H'19FF FFFF, and the second half of area 6 is allocated from
H'1A00 0000 to H'1BFF FFFF (these addresses are the local bus address). The pulse widths of
connected to area n (CSnPCR, n = 5 or 6), the space property, and the assert/negate timing for the
OE and WE signals. Also, areas 5 and 6 in CSnPCR can be set for the first half and second half
individually. The first half of area 5 is allocated from H'1400 0000 to H'15FF FFFF, and the
second half of area 5 is allocated from H'1600 0000 to H'17FF FFFF. The first half of area 6 is
allocated from H'1800 0000 to H'19FF FFFF, and the second half of area 6 is allocated from
H'1A00 0000 to H'1BFF FFFF (these addresses are the local bus address). The pulse widths of
OE
and
WE assertion for the first half of area 5 and 6 are set by the IW bits in CSnWCR.
CSnPCR is initialized to H'7700 0000 by a power-on reset, but it is not initialized by a manual
reset.
reset.
16
17
18
19
20
21
22
23
24
25
26
27
28
29
31
30
0
0
0
0
0
0
0
0
1
1
1
0
1
1
0
1
PCIW
PCWA
PCWB
SAB
⎯
SAA
⎯
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R/W
R/W
R
R/W
BIt:
Initial value:
R/W:
⎯
⎯
⎯
0
1
2
3
4
5
6
7
8
9
10
11
12
13
15
14
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
TEHB
TEHA
TEDB
TEDA
⎯
R/W
R/W
R/W
R
R/W
R/W
R/W
R
R/W
R/W
R/W
R
R/W
R/W
R
R/W
BIt:
Initial value:
R/W:
Bit Bit
Name
Initial
Value R/W Description
Value R/W Description
31
⎯ 0
R
Reserved
This bit is always read as 0. The write value should
always be 0.
always be 0.
30 to 28 SAA
111
R/W
Space Property A
These bits specify the space property of PCMCIA
connected to the first half of the area.
connected to the first half of the area.
000: ATA complement mode
001: Dynamic I/O bus sizing
010: 8-bit I/O space
011: 16-bit I/O space
100: 8-bit common memory
101: 16-bit common memory
110: 8-bit attribute memory
111: 16-bit attribute memory