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R01UH0336EJ0102 Rev.1.02
Page 81 of 1538
Jul 17, 2014
V850E2/PG4-L
Section 2 Port Functions
(6)
States of Pins Other than Port Pins
Table 2-31
List of States of Pins Other than Port Pins (1/2)
Pin Name
Reset
BIST for Self-
diagnosis is
Running
Immediately
after
Releasing the
CPU Core
from Reset
Halt Mode
FLMD0
—
—
—
—
FLMD1
—
—
—
—
RESET
Low
High
High
High
DCUTRST
*
1
*
1
Operation
Operation
DCUEVTO
Low
Low
Operation
*
2
Operation
*
2
DCUTDI
Hi-Z
Hi-Z
Operation
*
4,
*
5
Operation
*
4
DCUTDO
*
6
Hi-Z
Hi-Z
Operation
*
4,
*
5
Operation
*
4
DCUTCK
*
6
Hi-Z
Hi-Z
Operation
*
4,
*
5
Operation
*
4
DCUTMS
*
6
Hi-Z
Hi-Z
Operation
*
4,
*
5
Operation
*
4
DCUTRDY
*
6
Hi-Z
Hi-Z
Operation
*
4,
*
5
Operation
*
4
ERROROUT
*
3
Hi-Z
Low
Low
Operable
X1
Operation
Operation
Operation
Operation
X2
Operation
Operation
Operation
Operation
Note 1.For input of the high level to DCUTRST, confirm that the low level is
being output from DCUTRDY and execute the Nexus start-up
sequence beforehand. See Section 25.3 Notes on On-Chip
Debugging.
Note 2.The output on DCUEVTO is at the low level while the internal reset
signal (CPURES) is at the low level. If DCUTRST is set to the high
level, this becomes the output from DCUEVTO.
Note 3.ERROROUT pin is Hi-Z during an external reset and at the low level .
However, the ERROROUT pin is also at the low level during an
external reset in debugging mode.
Note 4.When DCUTRST = L, this is Hi-Z.
Note 5.With development tools (RAM monitor and the like), set DCUTRST to
the high level after DCUTRDY = L.
Note 6.It is alternative with JTAG ports. When OPBT0.FOP31=0, JTAG ports
are enabled. When OPBT0.FOP31=1, Nexus interface is enabled.