参数资料
型号: M68LC302CPU20VCT
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 4 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP100
封装: 14 X 14 MM, 1.40 MM HEIGHT, 0.50 MM PITCH, PLASITC, LQFP-100
文件页数: 94/128页
文件大小: 641K
代理商: M68LC302CPU20VCT
MOTOROLA
MC68EN302 REFERENCE MANUAL
5-1
SECTION 5
SIGNAL DESCRIPTIONS
This section contains descriptions of the MC68EN302 signals using the MC68302 as a
reference.
5.1 PIN/SIGNAL COMBINATIONS
The following table defines the MC68EN302 signals and the pinouts of the 144 pin TQFP
package. The PGA package has several exclusive signals not included on the TQFP
package. The signals exclusive to the PGA package are IAC, FRZ and two temperature
sense pins which are internally connected to each other.
Table 5-1. MC68EN302 144-TQFP Pin/Signal Definition
TQFP PIN
SIGNAL(S)
TYPE
1
TIN2/PB5
BIDIR
2
A0/TOUT1/PB4
BIDIR
3
VCC1
PWR
4
TIN1/PB3
BIDIR
5
DRAMRW/PB2/IACK1
BIDIR
6
CAS1/PB1/IACK6
BIDIR
7
CAS0/PB0/IACK7
BIDIR
8
GND1
PWR
9
UDS
BIDIR
10
LDS
BIDIR
11
AS
BIDIR
12
RW
BIDIR
13
GND2
PWR
14
XTAL
OUT
15
EXTAL
IN
16
VCC2
PWR
17
CLKO
OUT
18
IPL0/IRQ1
IN
19
IPL1/IRQ6
IN
20
IPL2/IRQ7
IN
21
BERR
BIDIR
22
AVEC/IOUT0
BIDIR
23
RESET
BIDIR
24
HALT
BIDIR
25
BR
BIDIR
26
BGACK
BIDIR
27
BG
BIDIR
PGA only
TPAD1 (TEMP_SENSE)
28
TMS
IN
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