6
–
7
Table 6
–
5. Socket Force Event Register Description
BIT
SIGNAL
TYPE
FUNCTION
31
–
28
RSVD
R
Reserved. Bits 31
–
28 return 0s when read.
27
FZVSUPPORT
W
Zoomed-video support. This bit indicates whether or not the socket has support for zoomed video.
26
–
15
RSVD
R
Reserved. Bits 26
–
15 return 0s when read.
14
CVSTEST
W
Card VS test. When bit 14 is set, the PCI1520 re-interrogates the PC Card, updates the socket present-state
register (CB offset 08h, see Section 6.3), and enables the socket control register (CB offset 10h, see
Section 6.5).
13
FYVCARD
W
Force YV card. Write transactions to bit 13 cause bit 13 (YVCARD) in the socket present-state register (CB
offset 08h, see Section 6.3) to be written. When set, this bit disables the socket control register (CB offset
10h, see Section 6.5).
12
FXVCARD
W
Force XV card. Write transactions to bit 12 cause bit 12 (XVCARD) in the socket present-state register (CB
offset 08h, see Section 6.3) to be written. When set, this bit disables the socket control register (CB offset
10h, see Section 6.5).
11
F3VCARD
W
Force 3-V card. Write transactions to bit 11 cause bit 11 (3VCARD) in the socket present-state register (CB
offset 08h, see Section 6.3) to be written. When set, this bit disables the socket control register (CB offset
10h, see Section 6.5).
10
F5VCARD
W
Force 5-V card. Write transactions to bit 10 cause bit 10 (5VCARD) in the socket present-state register (CB
offset 08h, see Section 6.3) to be written. When set, this bit disables the socket control register (CB offset
10h, see Section 6.5).
9
FBADVCCREQ
W
Force bad VCC request. Changes to bit 9 (BADVCCREQ) in the socket present-state register (CB offset 08h,
see Section 6.3) can be made by writing to bit 9.
8
FDATALOST
W
Force data lost. Write transactions to bit 8 cause bit 8 (DATALOST) in the socket present-state register (CB
offset 08h, see Section 6.3) to be written.
7
FNOTACARD
W
Force not-a-card. Write transactions to bit 7 cause bit 7 (NOTACARD) in the socket present-state register
(CB offset 08h, see Section 6.3) to be written.
6
RSVD
R
Reserved. Bit 6 returns 0 when read.
5
FCBCARD
W
Force CardBus card. Write transactions to bit 5 cause bit 5 (CBCARD) in the socket present-state register
(CB offset 08h, see Section 6.3) to be written.
4
F16BITCARD
W
Force 16-bit card. Write transactions to bit 4 cause bit 4 (16BITCARD) in the socket present-state register
(CB offset 08h, see Section 6.3) to be written.
3
FPWRCYCLE
W
Force power cycle. Write transactions to bit 3 cause bit 3 (PWREVENT) in the socket event register (CB
offset 00h, see Section 6.1) to be written, and bit 3 (PWRCYCLE) in the socket present-state register (CB
offset 08h, see Section 6.3) is unaffected.
2
FCDETECT2
W
Force CCD2. Write transactions to bit 2 cause bit 2 (CD2EVENT) in the socket event register (CB offset 00h,
see Section 6.1) to be written, and bit 2 (CDETECT2) in the socket present-state register (CB offset 08h,
see Section 6.3) is unaffected.
1
FCDETECT1
W
Force CCD1. Write transactions to bit 1 cause bit 1 (CD1EVENT) in the socket event register (CB offset 00h,
see Section 6.1) to be written, and bit 1 (CDETECT1) in the socket present-state register (CB offset 08h,
see Section 6.3) is unaffected.
0
FCARDSTS
W
Force CSTSCHG. Write transactions to bit 0 cause bit 0 (CSTSEVENT) in the socket event register (CB
offset 00h, see Section 6.1) to be written, and bit 0 (CARDSTS) in the socket present-state register (CB
offset 08h, see Section 6.3) is unaffected.