isp1160 NXP Semiconductors, isp1160 Datasheet - Page 26

• Manufacturer Part Number: isp1160
• Description: Isp1160 Embedded Universal Serial Bus Host Controller
• Manufacturer: NXP Semiconductors

Philips Semiconductors
9397 750 13963
Product data
Fig 20. PIO access to internal FIFO buffer RAM.
Host bus I/F
A0
3FFH
000H
001H
ITL0 buffer RAM
Following is an example of a C program that shows how to write data into the ATL
buffer RAM. The total number of data bytes to be transferred is 80 (decimal) that will
be set into the HcTransferCounter register as 50H. The data consists of four types of
PTD data:
In all PTDs, we have assigned device address as 5 and endpoint 1. ActualBytes is
always zero (0). TotalBytes equals the number of payload data bytes transferred.
However, note that for bulk and control transfers, TotalBytes can be greater than
MaxPacketSize.
Table 6
(8-bit width)
1. The first PTD header (IN) is 8 bytes, followed by 16 bytes of space reserved for
2. The second PTD header (IN) is also 8 bytes, followed by 8 bytes of space
3. The third PTD header (OUT) is 8 bytes, followed by 16 bytes of payload data with
4. The fourth PTD header (OUT) is also 8 bytes, followed by 8 bytes of payload data
1
0
its payload data;
reserved for its payload data;
values beginning from 0H to FH incrementing by 1;
with values beginning from 0H to EH incrementing by 2.
shows the results after running this program.
data port
command port
40H/C0H
41H/C1H
22H/A2H
24H/A4H
2CH
Rev. 05 — 24 December 2004
3FFH
000H
001H
Control registers
TransferCounter
ATLBufferPort
ITLBufferPort
BufferStatus
(16-bit width)
ITL1 buffer RAM
PInterrupt
(8-bit width)
Command register
Commands
7FFH
000H
001H
T
ATL buffer RAM
toggle
(8-bit width)
=
internal EOT
Embedded USB Host Controller
EOT
2
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
increments by 2
1
automatically
Pointer
0
MGT951
SOF
BufferStatus
ISP1160
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