TC1796
System Units (Vol. 1 of 2)
Introduction
User’s Manual 1-58 V2.0, 2007-07
Intro, V2.0
1.4.3 Pull-Up/Pull-Down Behavior of the Pins
Table 1-6 List of Pull-Up/Pull-Down Reset Behavior of the Pins
Pins PORST
= 0 PORST = 1
TSTRES,
TDI
, TMS,
TESTMODE,
BRKOUT, BRKIN,
all GPIOs,
RD, RD/WR,
ADV, BC[3:0], MR/W,
WAIT, BAA, HOLD,
HLDA, BREQ,
D[31:0], A[23,0],
CS[3:0], CSCOMB
Weak pull-up device active
NMI, PORST Weak pull-down device active
BYPASS,
SLSO0, SLSO1,
MTSR0, MRST0,
SCLK0, SLSI0,
TDO,
BFCLKI
Weak pull-up device active High-impedance
BFCLKO Weak pull-up device active Push-pull driver active
HDRST Open-drain device drives 0
(strong pull-down)
Weak pull-up device active
Open-drain device active
TRST, TCK High-impedance Weak pull-down device active
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