MAX16065 Datasheet, PDF (47/61 Pages) Maxim Integrated Products – 12-Channel/8-Channel, Flash-Configurable System Managers with Nonvolatile Fault Registers

12-Channel/8-Channel, Flash-Configurable System
Managers with Nonvolatile Fault Registers
REGISTERS
AND FLASH
MEMORY WRITE REGISTER
[LENGTH = 8 BITS]
MEMORY READ REGISTER
[LENGTH = 8 BITS]
MEMORY ADDRESS REGISTER
[LENGTH = 8 BITS]
USER CODE REGISTER
[LENGTH = 32 BITS]
IDENTIFICATION REGISTER
[LENGTH = 32 BITS]
BYPASS REGISTER
[LENGTH = 1 BIT]
01100
01011
01010
01001
01000
00111
00110
MUX 1
00101
00100
00011
00000
11111
COMMAND
DECODER
01001
01010
01011
01100
01000
00111
SETFLSHADD
RSTFLSHADD
SETUSRFLSH
RSTUSRFLSH
SAVE
REBOOT
V_DB
R_PU
TDI
TMS
TCK
INSTRUCTION REGISTER
[LENGTH = 5 BITS]
TEST ACCESS PORT
(TAP) CONTROLLER
Figure 15. JTAG Block Diagram
Pause-DR: Shifting of the test data registers halts while
in this state. All test data registers retain their previous
state. The controller remains in this state while TMS is
low. A rising edge on TCK with TMS high puts the con-
troller in the exit2-DR state.
Exit2-DR: A rising edge on TCK with TMS high while
in this state puts the controller in the update-DR state.
A rising edge on TCK with TMS low enters the shift-DR
state.
Update-DR: A falling edge on TCK while in the update-
DR state latches the data from the shift register path of
the test data registers into a set of output latches. This
prevents changes at the parallel output because of
MUX 2
TDO
changes in the shift register. On the rising edge of TCK,
the controller goes to the run-test/idle state if TMS is low
or goes to the select-DR-scan state if TMS is high.
Select-IR-Scan: All test data registers retain the previ-
ous states. The instruction register remains unchanged
during this state. With TMS low, a rising edge on TCK
moves the controller into the capture-IR state. TMS high
during a rising edge on TCK puts the controller back into
the test-logic-reset state.
Capture-IR: Use the capture-IR state to load the shift
register in the instruction register with a fixed value.
This value is loaded on the rising edge of TCK. If TMS is
high on the rising edge of TCK, the controller enters the
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