参数资料
型号: TMX20F2810PBKAEP
厂商: Texas Instruments, Inc.
元件分类: 数字信号处理
英文描述: Digital Signal Processors
中文描述: 数字信号处理器
文件页数: 25/159页
文件大小: 2084K
代理商: TMX20F2810PBKAEP
Introduction
25
March 2004 Revised October 2004
SGUS051A
Table 22. Signal Descriptions
(Continued)
PIN NO.
176-PIN
PGF
GPIO
PERIPHERAL SIGNAL
179-PIN
GHH
128-PIN
PBK
I/O/Z
PU/PD§
DESCRIPTION
GPIOF OR XF CPU OUTPUT SIGNAL
GPIOF14
XF_XPLLDIS (O)
A11
140
101
I/O/Z
PU
This pin has three functions:
1. XF General-purpose output pin.
2. XPLLDIS This pin will be sampled
during reset to check if the PLL needs
to be disabled. The PLL will be
disabled if this pin is sensed low. HALT
and STANDBY modes cannot be used
when the PLL is disabled.
3. GPIO GPIO function
GPIOG OR SCI-B SIGNALS
GPIOG4
SCITXDB (O)
P14
90
66
I/O/Z
GPIO or SCI asynchronous serial port
transmit data
GPIOG5
SCIRXDB (I)
M13
91
67
I/O/Z
GPIO or SCI asynchronous serial port
receive data
Typical drive strength of the output buffer for all pins [except TDO, XCLKOUT, XF, XINTF, EMU0, and EMU1 pins] is 4 mA typical.
I = Input, O = Output, Z = High impedance
§PU = pin has internal pullup; PD = pin has internal pulldown
NOTE:
Other than the power supply pins, no pin should be driven before the 3.3-V rail has reached
recommended operating conditions. However, it is acceptable for an I/O pin to ramp along with
the 3.3-V supply.
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