mc68ec060 Freescale Semiconductor, Inc, mc68ec060 Datasheet - Page 296

• Manufacturer Part Number: mc68ec060
• Description: Mc68060 Superscalar 68k Microprocessor Including The Lc060 And Ec060
• Manufacturer: Freescale Semiconductor, Inc

MOTOROLA
PDISABLE
PAPPLY
ACTION
PSHIFT
JTAG
PTDI
CLK
NOTES:
1. Clock is shown at 2x TCK here for illustration.
2. Hold PSHIFT = L and PAPPLY = L across boundary to prevent debug command.
3. Hold TRST = L across boundary to asynchronously set to TLR state.
4. Establish TDI = H and TMS = H before starting TCK.
5. Negate TRST after starting TCK.
Figure 9-13. Transition from Debug to JTAG Mode Timing Diagram
1
SHIFT
APPLY
2
DEBUG MODE
TRANSITION FROM DEBUG TO JTAG MODE
3
NO ACTION
4
5
M68060 USER’S MANUAL
6
IEEE 1149.1 Test (JTAG) and Debug Pipe Control Modes
7
TLR
JTAG MODE
8
9
10
TLR
11
12
TLR
13
14
RTI
15
SeDR
JTAG
TRST
STATE
CLK
TDI
TCK
TMS
9-35