TMS320DM6467CCUT7 Datasheet, PDF (109/355 Pages) Texas Instruments – Digital Media System-on-Chip

TMS320DM6467
www.ti.com
SPRS403H – DECEMBER 2007 – REVISED JUNE 2012
4.6.2.1 HPICTL Register
The HPI control register (HPICTL) [0x01C4 0030] controls write access to HPI control and address
registers and determines the host time-out value. HPICTL is not reset by a soft reset so that the HPI width
will remain correctly configured. Figure 4-14 and Table 4-18 describe in detail the HPICTL register.
31
18
RESERVED
R-0000 0000 0000 00
15
14
10
9
8
7
WIDTH
RESERVED
CTLMODE
ADDMODE
R/W-0
R-000 00
R/W-0
R/W-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
TIMOUT
R/W-1000 0000
Figure 4-14. HPICTL Register [0x01C4 0030]
17
16
RESERVED
R/W-00
0
BIT
31:18
17:16
15
14:10
9
8
7:0
NAME
RESERVED
RESERVED
WIDTH
RESERVED
CTLMODE
ADDMODE
TIMOUT
Table 4-18. HPICTL Register Bit Descriptions
DESCRIPTION
Reserved. Read-only, writes have no effect.
Reserved. For proper device operation, the user should only write "0" to these bits (default).
HPI Data Width.
0 = Half-width (16-bit) data bus
1 = Full-width (32-bit) data bus
This bit value must be determined before releasing the UHPI from reset to ensure correct UHPI
operation.
Reserved. Read-only, writes have no effect.
HPIC Register Write Access.
0 = Host
1 = DMSoC (if ADDMODE = 1)
HPIA Register Write Access.
0 = Host
1 = DMSoC
Host Burst Write Timeout Value.
When the HPI time-out counter reaches the value programmed here, the HPI write FIFO content is
flushed. For more details on the time-out counter and its use in write bursting, see the
TMS320DM646x DMSoC Host Port Interface (HPI) User's Guide (literature number SPRUES1).
4.6.2.2 USBCTL Register
The USB interface control register (USBCTL) [0x01C4 0034] is described in Figure 4-15 and Table 4-19.
31
RESERVED
R-0000 0000 0000 0
15
9
8
RESERVED
PHY
CLKGD
R-0000 000
R-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
7
5
RESERVED
R-000
4
PHY
PLLON
R/W-0
Figure 4-15. USBCTL Register [0x01C4 0034]
19
18
17
16
DATAPOL VBUSVAL USBID
R/W-1 R/W-0 R/W-0
3
1
RESERVED
R-000
0
PHY
PDWN
R/W-1
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Device Configurations 109