參數(shù)資料
型號: TMS320C6713BGDPA200
廠商: Texas Instruments, Inc.
元件分類: 數(shù)字信號處理
英文描述: FLOATING-POINT DIGITAL SIGNAL PROCESSORS
中文描述: 浮點(diǎn)數(shù)字信號處理器
文件頁數(shù): 31/150頁
文件大小: 2039K
代理商: TMS320C6713BGDPA200
TMS320C6713, TMS320C6713B
FLOATING-POINT DIGITAL SIGNAL PROCESSORS
SPRS186I
DECEMBER 2001
REVISED MAY 2004
31
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251
1443
DEVICE CONFIGURATIONS
On the C6713/13B devices, bootmode and certain device configurations/peripheral selections are determined
at device reset, while other device configurations/peripheral selections are software-configurable via the device
configurations register (DEVCFG) [address location 0x019C0200] after device reset.
device configurations at device reset
Table 18 describes the C6713 and C6713B device configuration pins, which are set up via internal or external
pullup/pulldown resistors through the HPI data pins (HD[4:3], HD8, HD12 [13B only]), and CLKMODE0 pin.
These configuration pins must be in the desired state until reset is released. For more details on these device
configuration pins, see the Terminal Functions table and the Debugging Considerations section of this data
sheet.
Table 18. Device Configurations Pins at Device Reset (HD[4:3], HD8, HD12 [13B only], and CLKMODE0)
CONFIGURATION
PIN
PYP
GDP
FUNCTIONAL DESCRIPTION
HD12
168
C15
EMIF Big Endian mode correctness (EMIFBE) [
C6713B
only]
For a
C6713BGDP
:
0
The EMIF data will always be presented on the ED[7:0] side of the
bus, regardless of the endianess mode (Little/Big Endian).
In Little Endian mode (HD8 =1), the 8-bit or 16-bit EMIF data will
be present on the ED[7:0] side of the bus.
In Big Endian mode (HD8 =0), the 8-bit or 16-bit EMIF data will be
present on the ED[31:24] side of the bus [default].
1
For a
C6713BPYP
, when Big Endian mode is selected (LENDIAN = 0), for
proper device operation the EMIFBE pin
must
be externally pulled low.
This enhancement is
not
supported on the C6713 device.
For proper
C6713
device operation,
do not
oppose the internal pullup (IPU)
resistor on this pin.
This new functionality does
not
affect systems using the current default value
of HD12=1. For more detailed information on the big endian mode
correctness, see the
EMIF Big Endian Mode Correctness [C6713B Only]
portion of this data sheet.
HD8
160
B17
Device Endian mode (LEND)
0
System operates in Big Endian mode
1
System operates in Little Endian mode (default)
HD[4:3]
(BOOTMODE)
156, 154
C19, C20
Bootmode Configuration Pins (BOOTMODE)
00 –
CE1 width 32-bit, HPI boot/Emulation boot
01 –
CE1 width 8-bit, Asynchronous external ROM boot with default
timings (default mode)
10
CE1 width 16-bit, Asynchronous external ROM boot with default
timings
11
CE1 width 32-bit, Asynchronous external ROM boot with default
timings
For more detailed information on these bootmode configurations, see the
bootmode
section of this data sheet.
CLKMODE0
205
C4
Clock generator input clock source select
0
Reserved. Do not use.
1
CLKIN square wave [default]
This pin
must
be pulled to the correct level even after reset.
All other HD pins [HD [15, 13:9, 7:5, 2:0] (for 13) or HD [15, 13, 11:9, 7:5, 2:0] (for 13B)] have pullups/pulldowns (IPUs or IPDs). For proper device
operation of the HD [15, 13:9, 7, 1, 0] (for 13) or HD [13, 11:9, 7, 1, 0] (for 13B),
do not
oppose these pins with external pullups/pulldowns at
reset; however, the HD[6, 5, 2] (for 13)
or
HD[15, 6, 5, 2] (for 13B) pins
can
be opposed and driven during reset.
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