ISP1362
Single-chip USB OTG controller
Philips Semiconductors
Bit
7
6
5
4
3
2
1
0
Symbol
Reset
Access
BufferStartAddress[7:0]
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Table 78: HcDirectAddressLength register: bit description
Bit Symbol Description
31 to 16 DataByteCount [15:0]
Total number of bytes to be accessed.
reserved
15
-
14 to 0
BufferStartAddress[14:0] The starting address of the buffer for accessing of data.
15.6.3 HcDirectAddressData register (R/W: 45H/C5H)
This is a data port for the HCD to access the ISTL, INTL or ATL buffers under the
direct addressing mode. Table 79 contains the bit description of the register.
Code (Hex): 45 — read
Code (Hex): C5 — write
Table 79: HcDirectAddressData register: bit description
Bit
Symbol
Access Value Description
15 to 0 DataWord R/W
[15:0]
0000H The data port for accessing the ISTL, INTL or ATL
buffers. The address of the buffer and byte count of
the data must be specified in the
HcDirectAddressLength register.
15.7 Isochronous (ISO) transfer registers
15.7.1 HcISTLBufferSize register (R/W: 30H/B0H)
This register requires you to allocate the size of the buffer to be used for ISO
transactions. The buffer size specified in the register is applied to the ISTL0 and
ISTL1 buffers. Therefore, ISTL0 and ISTL1 always have the same buffer size.
Table 80 shows the bit description of the register.
Code (Hex): 30 — read
Code (Hex): B0 — write
Table 80: HcISTLBufferSize register: bit description
Bit
Symbol
Access Value
Description
15 to 0 ISTLBuffer R/W
Size[15:0]
0000H
The size of the buffer to be used for ISO
transactions and must be specified in bytes.
15.7.2 HcISTL0BufferPort register (R/W: 40H/C0H)
In addition to the HcDirectAddressData register, the ISP1362 provides this register to
act as another data port for accessing the ISTL0 buffer. The starting address for
accessing the buffer is always fixed at 0000H. Therefore, random access of the ISTL0
buffer is not allowed. The bit description of the register is given in Table 81.
9397 750 12337
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data
Rev. 03 — 06 January 2004
101 of 150
NXP [ NXP ]
