参数资料
型号: TSB43AA82GGW
厂商: TEXAS INSTRUMENTS INC
元件分类: 微控制器/微处理器
英文描述: 2 CHANNEL(S), 400M bps, SERIAL COMM CONTROLLER, PBGA176
封装: PLASTIC, BGA-176
文件页数: 20/146页
文件大小: 770K
代理商: TSB43AA82GGW
916
Table 911. ATAPI Mode
TITLE
ITEM
MIN
MAX
UNIT
t(ui)
Unlimit interlock time
50
ns
t(env)
Emulate time
22
ns
tcyc
Cycle time
25
ns
t(dvs)
Data valid setup time
7
ns
t(dvh)
Data valid hold time
0
ns
t(mli)
Interlock time with minimum
70
ns
t(li)
Unlimited interlock time
50
ns
t(iordyz)
Before driving IORDY
0
ns
9.6
Endianness
When BLeCtl (94h, bit 16) is 1, data from the DMA interface is received in little-endian mode. The differences between
little endian and big endian are described as follows.
The example is for transmitting 1394 quadlet data packets.
D0
D1
D2
D3
Data is transmitted in the order shown below. For 1-, 2-, and 3-byte data, padded data is deleted before transmission.
8-Bit Mode
Big Endian Byte Ordering
4 byte data
D0
D1D2D3
3 byte data
D0
D1D2
D3 is padded with 00h.
2 byte data
D0
D1
D2 and D3 are padded with 00h.
1 byte data
D0
D1, D2, and D3 are padded with 00h.
Little Endian Byte Ordering
4 byte data
D3
D2D1D0
3 byte data
D2
D1D0
D3 is padded with 00h.
2 byte data
D1
D0
D2 and D3 are padded with 00h.
1 byte data
D0
D1, D2, and D3 are padded with 00h.
16-Bit Mode
Big Endian Byte Ordering
4 byte data
{D0, D1}
{D2, D3}
3 byte data
{D0, D1}
{D2, 00h}
D3 is padded with 00h.
2 byte data
{D0, D1}
{00h, 00h}
D2 and D3 are padded with 00h.
1 byte data
{D0, 00h}
{00h, 00h}
D1, D2, and D3 are padded with 00h.
Little Endian Byte Ordering
4 byte data
{D2, D3}
{D0, D1}
3 byte data
{D2, 00h}
{D0, D1}
D3 is padded with 00h.
2 byte data
{00h, 00h}
{D0, D1}
D2 and D3 are padded with 00h.
1 byte data
{00h, 00h}
{D0, 00h}
D1, D2, and D3 are padded with 00h.
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