
SPRS094I APRIL 1999 REVISED SEPTEMBER 2003
10
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
pin functions
The TMS320LF2407 device is the superset of all the 240x devices. All signals are available on the 2407 device.
Table 2 lists the signals available in the 240x generation of devices.
Table 2. LF240x Pin List and Package Options
PIN NAME
LF2407
LF2406
LF2402
DESCRIPTION
EVENT MANAGER A (EVA)
CAP1/QEP1/
IOPA3
83
57
4
Capture input #1/quadrature encoder pulse input #1 (EVA) or GPIO
(
↑
)
(
↑
)
CAP2/QEP2/
IOPA4
79
55
3
Capture input #2/quadrature encoder pulse input #2 (EVA) or GPIO
CAP3/
IOPA5
75
52
2
Capture input #3 (EVA) or GPIO
(
↑
)
PWM1/
IOPA6
56
39
59
Compare/PWM output pin #1 (EVA) or GPIO
(
↑
)
(
↑
)
(
↑
)
(
↑
)
(
↑
)
(
↑
)
PWM2/
IOPA7
54
37
58
Compare/PWM output pin #2 (EVA) or GPIO
PWM3/
IOPB0
52
36
57
Compare/PWM output pin #3 (EVA) or GPIO
PWM4/
IOPB1
47
33
54
Compare/PWM output pin #4 (EVA) or GPIO
PWM5/
IOPB2
44
31
53
Compare/PWM output pin #5 (EVA) or GPIO
PWM6/
IOPB3
40
28
50
Compare/PWM output pin #6 (EVA) or GPIO
T1PWM/T1CMP/
IOPB4
16
12
40
Timer 1 compare output (EVA) or GPIO
(
↑
)
(
↑
)
T2PWM/T2CMP/
IOPB5
18
13
41
Timer 2 compare output (EVA) or GPIO
TDIRA/
IOPB6
14
11
Counting direction for general-purpose (GP) timer (EVA) or GPIO.
If TDIRA = 1, upward counting is selected. If TDIRA = 0, downward counting
is selected.
(
↑
)
External clock input for GP timer (EVA) or GPIO. Note that the timer can also
use the internal device clock.
(
↑
)
TCLKINA/
IOPB7
37
26
49
EVENT MANAGER B (EVB)
CAP4/QEP3/
IOPE7
88
60
Capture input #4/quadrature encoder pulse input #3 (EVB) or GPIO
(
↑
)
(
↑
)
CAP5/QEP4/
IOPF0
81
56
Capture input #5/quadrature encoder pulse input #4 (EVB) or GPIO
CAP6/
IOPF1
69
48
Capture input #6 (EVB) or GPIO
(
↑
)
PWM7/
IOPE1
65
45
Compare/PWM output pin #7 (EVB) or GPIO
(
↑
)
(
↑
)
(
↑
)
(
↑
)
(
↑
)
(
↑
)
PWM8/
IOPE2
62
43
Compare/PWM output pin #8 (EVB) or GPIO
PWM9/
IOPE3
59
41
Compare/PWM output pin #9 (EVB) or GPIO
PWM10/
IOPE4
55
38
Compare/PWM output pin #10 (EVB) or GPIO
PWM11/
IOPE5
46
32
Compare/PWM output pin #11 (EVB) or GPIO
PWM12/
IOPE6
38
27
Compare/PWM output pin #12 (EVB) or GPIO
T3PWM/T3CMP/
IOPF2
8
7
Timer 3 compare output (EVB) or GPIO
(
↑
)
(
↑
)
T4PWM/T4CMP/
IOPF3
6
5
Timer 4 compare output (EVB) or GPIO
TDIRB/
IOPF4
2
2
Counting direction for general-purpose (GP) timer (EVB) or GPIO.
If TDIRB = 1, upward counting is selected. If TDIRB = 0, downward counting
is selected.
(
↑
)
External clock input for GP timer (EVB) or GPIO. Note that the timer can also
use the internal device clock.
(
↑
)
TCLKINB/
IOPF5
126
89
Bold, italicized pin names
indicate pin function after reset.
GPIO General-purpose input/output pin. All GPIOs come up as input after reset.
§It is highly recommended that VCCA be isolated from the digital supply voltage (and VSSA from digital ground) to maintain the specified accuracy
and improve the noise immunity of the ADC.
Only when all of the following conditions are met: EMU1/OFF is low, TRST is low, and EMU0 is high
#No power supply pin (VDD, VDDO, VSS, or VSSO) should be left unconnected. All power supply pins must be connected appropriately for proper
device operation.
LEGEND:
↑
Internal pullup
↓
Internal pulldown
(Typical active pullup/pulldown value is
±
16
μ
A.)