TMS320DM6446 Datasheet, PDF (46/214 Pages) Texas Instruments – Digital Media System on-Chip

TMS320DM6446
Digital Media System on-Chip
SPRS283 – DECEMBER 2005
www.ti.com
SIGNAL
NAME
GPIO4/
R0/
C_FIELD
GPIO5/
G1
GPIO6/
B1
GPIO38/
R1
PWM1/
R2/
GPIO46
PWM2/
B2/
GPIO47
Table 2-24. VPBE Terminal Functions (continued)
TYPE ⁽¹⁾
NO.
B14
I/O/Z
E14
I/O/Z
A14
I/O/Z
D14
I/O/Z
B15
I/O/Z
A15
I/O/Z
IPD/
IPU ⁽²⁾
IPD
IPD
IPD
IPD
IPD
IPD
DESCRIPTION
This pin is multiplexed between GPIO, the VPFE, and the VPBE. In GPIO
mode, it is GPIO pin GPIO4.
In VPBE mode, it is RGB888 Red data bit 0 output R0.
In VPFE mode, it is CCDC field identification bidirectional signal C_FIELD.
This pin is multiplexed between GPIO and the VPBE. In GPIO mode, it is
GPIO pin GPIO5.
In VPBE mode, it is RGB888 Green data bit 1 output G1.
This pin is multiplexed between GPIO and the VPBE. In GPIO mode, it is
GPIO pin GPIO6.
In VPBE mode, it is RGB888 Blue data bit 1 output B1.
This pin is multiplexed between VPBE and GPIO. When used by GPIO, it
is GPIO38.
In VPBE mode, it is RGB888 Red output data bit 1.
This pin is multiplexed between PWM1, VPBE, and GPIO. For PWM1, it is
output PWM1.
In VPBE mode, it is RGB888 Red output bit 2 (R2).
For GPIO, it is GPIO46.
This pin is multiplexed between PWM2, VPBE, and GPIO. For PWM2, it is
output PWM2.
In VPBE mode, it is RGB888 Blue output bit 2 (B2).
For GPIO, it is GPIO47.
Table 2-25. DAC [Part of VPBE] Terminal Functions
SIGNAL
NAME
TYPE ⁽¹⁾
NO.
IPD/
IPU ⁽²⁾
DESCRIPTION
DAC[A:D]
DAC_VREF
R17
AI
Reference voltage input (0.5 V)
DAC_IOUT_A
P19
AO
Output of DAC A
DAC_IOUT_B
P18
AO
Output of DAC B
DAC_IOUT_C
R19
AO
Output of DAC C
DAC_IOUT_D
T19
AO
Output of DAC D
V_{DDA_1P8V}
V_{SSA_1P8V}
V_{DDA_1P1V}
V_{SSA_1P1V}
DAC_RBIAS
R18
S
P17
GND
P16
S
T18
GND
R16
AI
1.8 V Analog I/O power
Analog I/O ground
1.20 V Analog core supply voltage (-594 device)
Analog core ground
External resistor connection for current bias configuration. This must be connected
via a 4 kΩ resistor to V_{SSA_1P8V}.
(1) I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal
(2) IPD = Internal pulldown, IPU = Internal pullup. (To pull up a signal to the opposite supply rail, a 1-kΩ resistor should be used.)
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