PCI1221 datasheet(90/123 Pages) TI

90 / 123 page

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

ExCA address window enable register (index 06h)

Bit

Name

ExCA address window enable

Type

R/W

Default

ExCA address window enable

Type:

Read only, read/write (see individual bit descriptions)

Offset:

CardBus socket address + 806h; Card A ExCA offset 06h

Card B ExCA offset 46h

Default:

00h

Description: This register enables/disables the memory and I/O windows to the 16-bit PC Card. By default,

all windows to the card are disabled. The PCI1221 does not acknowledge PCI memory or I/O

cycles to the card if the corresponding enable bit in this register is 0, regardless of the

programming of the memory or I/O window start/end/offset address registers. See Table 45

for a complete description of the register contents.

Table 45. ExCA Address Window Enable Register (Index 06h)

BIT

SIGNAL

TYPE

FUNCTION

IOWIN1EN

R/W

I/O window 1 enable. Bit 7 enables/disables I/O window 1 for the PC Card. This bit is encoded as:

0 = I/O window 1 disabled (default)

1 = I/O window 1 enabled

IOWIN0EN

R/W

I/O window 0 enable. Bit 6 enables/disables I/O window 0 for the PC Card. This bit is encoded as:

0 = I/O window 0 disabled (default)

1 = I/O window 0 enabled

RSVD

Reserved. Bit 5 is read only and returns 0 when read. Write transactions have no effect.

MEMWIN4EN

R/W

Memory window 4 enable. Bit 4 enables/disables memory window 4 for the PC Card. This bit is

encoded as:

0 = Memory window 4 disabled (default)

1 = Memory window 4 enabled

MEMWIN3EN

R/W

Memory window 3 enable. Bit 3 enables/disables memory window 3 for the PC Card. This bit is

encoded as:

0 = Memory window 3 disabled (default)

1 = Memory window 3 enabled

MEMWIN2EN

R/W

Memory window 2 enable. Bit 2 enables/disables memory window 2 for the PC Card. This bit is

encoded as:

0 = Memory window 2 disabled (default)

1 = Memory window 2 enabled

MEMWIN1EN

R/W

Memory window 1 enable. Bit 1 enables/disables memory window 1 for the PC Card. This bit is

encoded as:

0 = Memory window 1 disabled (default)

1 = Memory window 1 enabled

MEMWIN0EN

R/W

Memory window 0 enable. Bit 0 enables/disables memory window 0 for the PC Card. This bit is

encoded as:

0 = Memory window 0 disabled (default)

1 = Memory window 0 enabled

PCI1221 датащи(PDF) 90 Page - Texas Instruments

PCI1221 датащи(HTML) 90 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

датащи скачать

ссылки URL