IEEE 1149.1-Compliant Interface (JTAG)
MPC561/MPC563 Reference Manual, Rev. 1.2
Freescale Semiconductor
25-3
Figure 25-2. Test Logic Block Diagram
25.1.2
Entering JTAG Mode
To enable JTAG on reset for board test JCOMP/RSTI must be high on PORESET rising edge as shown in
.
NOTE
JTAG puts all output pins in fast slew rate mode. Enough current cannot be
supplied to allow all the pins to be switched simultaneously, so this should
be avoided.
Figure 25-3. JTAG Mode Selection
Boundary scan register
Bypass
M
U
X
Instruction apply & decode register
4-bit Instruction register
M
U
X
TDO
TDI
TMS
TCK
JCOMP
/
RSTI
0
1
2
TAP Controller
3
TRST
PORESET / TRST
PORESET
JCOMP/RSTI
Configuration
JTAG
JTAG ON
JTAG off/READI Config
T
Summary of Contents for MPC561
Page 84: ...MPC561 MPC563 Reference Manual Rev 1 2 lxxxiv Freescale Semiconductor...
Page 144: ...Signal Descriptions MPC561 MPC563 Reference Manual Rev 1 2 2 46 Freescale Semiconductor...
Page 206: ...Central Processing Unit MPC561 MPC563 Reference Manual Rev 1 2 3 62 Freescale Semiconductor...
Page 302: ...Reset MPC561 MPC563 Reference Manual Rev 1 2 7 14 Freescale Semiconductor...
Page 854: ...Time Processor Unit 3 MPC561 MPC563 Reference Manual Rev 1 2 19 24 Freescale Semiconductor...
Page 968: ...Development Support MPC561 MPC563 Reference Manual Rev 1 2 23 54 Freescale Semiconductor...
Page 1144: ...Internal Memory Map MPC561 MPC563 Reference Manual Rev 1 2 B 34 Freescale Semiconductor...
Page 1212: ...TPU3 ROM Functions MPC561 MPC563 Reference Manual Rev 1 2 D 60 Freescale Semiconductor...
Page 1216: ...Memory Access Timing MPC561 MPC563 Reference Manual Rev 1 2 E 4 Freescale Semiconductor...