MCF5282CVM66 Freescale, MCF5282CVM66 Datasheet - Page 665

• Manufacturer Part Number: MCF5282CVM66
• Manufacturer: Freescale

Specifications of MCF5282CVM66

• Cpu Family: MCF528x
• Device Core: ColdFire
• Device Core Size: 32b
• Frequency (max): 66MHz
• Interface Type: CAN/I2C/QSPI/UART
• Total Internal Ram Size: 64KB
• # I/os (max): 150
• Number Of Timers - General Purpose: 12
• Operating Supply Voltage (typ): 3.3V
• On-chip Adc: 8-chx10-bit
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 256
• Package Type: MA-BGA
• Program Memory Type: Flash
• Program Memory Size: 512KB
• Lead Free Status / RoHS Status: Compliant

Chapter 31
IEEE 1149.1 Test Access Port (JTAG)
The Joint Test Action Group, or JTAG, is a dedicated user-accessible test logic, that complies with the
IEEE 1149.1 standard for boundary-scan testability, to help with system diagnostic and manufacturing
testing.
This architecture provides access to all data and chip control pins from the board-edge connector through
the standard four-pin test access port (TAP) and the JTAG reset pin, TRST.
Figure 31-1
Freescale Semiconductor
TRST/DSCLK
TMS/BKPT
JTAG_EN
TDI/DSI
TCLK
shows the block diagram of the JTAG module.
JTAG Module
147
31
6
2
3
148-BIT BOUNDARY SCAN REGISTER
7-BIT JTAG_CFM_CLKDIV REGISTER
4-BIT TAP INSTRUCTION DECODER
4-BIT TAP INSTRUCTION REGISTER
1-BIT BYPASS REGISTER
3-BIT TEST_CTRL REGISTER
32-BIT IDCODE REGISTER
TAP CONTROLLER
Figure 31-1. JTAG Block Diagram
to Debug Module
Disable DSCLK
Force BKPT = 1
0
0
0
0
0
DSI
= 0
DSO
DSI
BKPT
DSCLK
0
1
1
0
TDO/DSO
31-1