MC68040FE33A Freescale Semiconductor, MC68040FE33A Datasheet - Page 121
MC68040FE33A
Manufacturer Part Number
MC68040FE33A
Description
IC MICROPROCESSOR 32BIT 184-CQFP
Manufacturer
Freescale Semiconductor
Datasheet
1.MC68EC040FE33A.pdf
(442 pages)
Specifications of MC68040FE33A
Processor Type
M680x0 32-Bit
Speed
33MHz
Voltage
5V
Mounting Type
Surface Mount
Package / Case
184-CQFP
Package
184CQFP
Processor Series
M680xx
Core
CPU32
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68040FE33A
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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6.1 OVERVIEW
Figure 6-1 illustrates a block diagram of the M68040 implementation of IEEE standard
1149.1A. The test logic includes a 16-state dedicated TAP controller. These 16 controller
states are defined in detail in the IEEE standard 1149.1A, but only 8 are included in this
section.
The TAP controller provides access to five dedicated signal pins:
The test logic also includes an instruction shift register and two test data registers, a
boundary scan register and a bypass register. The boundary scan register links all device
signal pins into the instruction shift register.
6-2
TCK—A test clock input that synchronizes the test logic.
TMS—A test mode select input with an internal pullup resistor sampled on the rising
TDI—A test data input with an internal pullup resistor sampled on the rising edge of
TDO—A three-state test data output actively driven only in the shift-IR and shift-DR
TRST —An active-low asynchronous reset with an internal pullup resistor that forces
TCK.
edge of TCK to sequence the TAP controller.
controller states that changes on the falling edge of TCK.
the TAP controller into the test-logic-reset state.
TRST
TMS
TCK
TDI
Figure 6-1. M68040 Test Logic Block Diagram
Freescale Semiconductor, Inc.
Test-Logic-Reset
Capture-IR
Update-IR
Shift-IR
For More Information On This Product,
183
184-BIT BOUNDARY SCAN REGISTER
BYPASS
2
M68040 USER’S MANUAL
3-BIT INSTRUCTION SHIFT REGISTER
Go to: www.freescale.com
TEST DATA REGISTERS
LATCHED DECODER
Run-Test/Idle
Capture-DR
Update-DR
Shift-DR
0
0
TDO
MOTOROLA
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