MC68340AG25E Freescale Semiconductor, MC68340AG25E Datasheet - Page 379
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MC68340AG25E
Manufacturer Part Number
MC68340AG25E
Description
IC MPU 32BIT 25MHZ 144-LQFP
Manufacturer
Freescale Semiconductor
Datasheet
1.MC68340FE25E.pdf
(441 pages)
Specifications of MC68340AG25E
Processor Type
M683xx 32-Bit
Speed
25MHz
Voltage
5V
Mounting Type
Surface Mount
Package / Case
144-LQFP
Controller Family/series
68K
Core Size
32 Bit
No. Of I/o's
16
Cpu Speed
25MHz
No. Of Timers
2
Embedded Interface Type
UART
Digital Ic Case Style
LQFP
Rohs Compliant
Yes
Processor Series
M683xx
Core
CPU32
Maximum Clock Frequency
25 MHz
Maximum Operating Temperature
+ 105 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
0 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Lead Free Status / Rohs Status
Details
Available stocks
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Part Number:
MC68340AG25E
Manufacturer:
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MC68340AG25E
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Boundary scan bit definitions are shown in Table 9-2. The first column in Table 9-2 defines
the bit's ordinal position in the boundary scan register. The shift register bit nearest TDO
(i.e., first to be shifted out) is defined as bit 0; the last bit to be shifted out is 131.
The second column references one of the five MC68340 cell types depicted in Figures
9-3–9-7, which describe the cell structure for each type.
The third column lists the pin name for all pin-related bits or defines the name of
bidirectional control register bits. The active level of the control bits (i.e., output driver on)
is defined by the last digit of the cell type listed for each control bit. For example, the
active-high level for irq7.ctl (bit 52) is logic zero since the cell type is IO.Ctl0. The active
level for ab.ctl (bit 83) is logic one, since the cell type is IO.Ctl1. IO.Ctl0 (see Figure 9-6)
differs from IO.Ctl1 (see Figure 9-5) by an inverter in the output enable path.
The fourth column lists the pin type: TS-Output indicates a three-state output pin, I/O
indicates a bidirectional pin, and OD-I/O denotes an open-drain bidirectional pin. An open-
drain output pin has two states: off (high impedance) and logic zero.
The last column indicates the associated boundary scan register control bit for
bidirectional, three-state, and open-drain output pins.
Bidirectional pins include a single scan bit for data (IO.Cell) as depicted in Figure 9-7.
These bits are controlled by one of the two bits shown in Figures 9-5 and 9-6. The value of
the control bit determines whether the bidirectional pin is an input or an output. One or
more bidirectional data bits can be serially connected to a control bit as shown in Figure 9-
8. Note that, when sampling the bidirectional data bits, the bit data can be interpreted only
after examining the IO control bit to determine pin direction.
9-4
tout2.ctl
Name
irq7.ctl
irq6.ctl
irq5.ctl
cs3.ctl
irq3.ctl
cs2.ctl
cs1.ctl
Bit Number
Table 9-1. Boundary Scan Control Bits
Freescale Semiconductor, Inc.
For More Information On This Product,
29
52
54
56
58
62
64
60
MC68340 USER’S MANUAL
Go to: www.freescale.com
ab24.ctl
ab25.ctl
ab26.ctl
ab27.ctl
berr.ctl
cs0.ctl
Name
ab.ctl
db.ctl
Bit Number
84
87
66
83
85
89
91
93
modck.ctl
ifetch.ctl
ab28.ctl
ab29.ctl
ab30.ctl
ab31.ctl
tout1.ctl
Name
Bit Number
101
122
125
130
95
97
99
MOTOROLA
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