参数资料
型号: 440EPX
厂商: Applied Micro Circuits Corp.
英文描述: PowerPC 440EPx Embedded Processor
中文描述: 嵌入式处理器的PowerPC 440EPx
文件页数: 62/94页
文件大小: 738K
代理商: 440EPX
440EPx – PPC440EPx Embedded Processor
Revision 1.26 – October 15, 2007
AMCC Proprietary
65
Preliminary Data Sheet
Trace Interface
TrcBS0:2
Trace branch execution status.
I/O
3.3V tolerant
2.5V CMOS
TrcClk
Trace data capture clock, runs at 1/4 the frequency of the
processor.
O
3.3V tolerant
2.5V CMOS
TrcES0:4
Trace Execution Status is presented every fourth processor clock
cycle.
I/O
3.3V tolerant
2.5V CMOS
TrcTS0:6
Additional information on trace execution and branch status.
I/O
3.3V tolerant
2.5V CMOS
Power
VDD
+1.5V—Logic voltage.
n/a
OVDD
+3.3V—I/O (except DDR2 SDRAM and Ethernet).
n/a
EOVDD
+2.5V—I/O Ethernet.
n/a
SOVDD
+1.8V (DDR2) or +2.5V (DDR1)—I/O DDR SDRAM.
n/a
GND
Ground for logic and I/O voltage.
n/a
AVDD
+1.5V—Filtered voltage for system PLLs (analog).
n/a
AGND
Ground for system PLL voltage (analog).
n/a
EAVDD
+1.5V—Filtered voltage for Ethernet PLLs (analog).
n/a
EAGND
Ground for Ethernet PLL voltage (analog).
n/a
U1AVDD
+3.3V—Filtered voltage for USB PLL (analog).
Connect to OVDD.
n/a
U2AVDD
+3.3V—Filtered voltage for USB PHY (analog).
Connect to OVDD.
n/a
U1AGND
Ground for USB PLL (analog) voltage.
Connect to GND.
n/a
U2AGND
Ground for USB PHY (analog) voltage.
Connect to GND.
n/a
Table 8. Signal Functional Description (Sheet 9 of 9)
Notes:
1. Receiver input has hysteresis
2. Must pull up (recommended value is 3k
Ω to OV
DD (EOVDD for Ethernet)
3. Must pull down (recommended value is 1k
Ω)
4. If not used, must pull up (recommended value is 3k
Ω to OV
DD (EOVDD for Ethernet)
5. If not used, must pull down (recommended value is 1k
Ω)
6. Strapping input during reset; pull-up or pull-down required
Signal Name
Description
I/O
Type
Notes
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