参数资料
型号: TMS320C2812ZHHS
厂商: TEXAS INSTRUMENTS INC
元件分类: 数字信号处理
英文描述: 16-BIT, 150 MHz, OTHER DSP, PBGA179
封装: LEAD FREE, BGA-179
文件页数: 77/156页
文件大小: 1826K
代理商: TMS320C2812ZHHS
Introduction
27
April 2001 Revised October 2005
SPRS174M
Table 22. Signal Descriptions (Continued)
PIN NO.
§
GPIO
PERIPHERAL SIGNAL
179-PIN
GHH
176-PIN
PGF
128-PIN
PBK
I/O/Z
PU/PD§
DESCRIPTION
GPIOF OR XF CPU OUTPUT SIGNAL
GPIOF14
XF_XPLLDIS (O)
A11
140
101
I/O
PU
This pin has three functions:
1. XF General-purpose output pin.
2. XPLLDIS This pin is sampled
during reset to check whether the PLL
must 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. Pullup/pulldown strength is given in Section 6.3.
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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