DS2155 datasheet(230/262 Pages) DALLAS

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DS2156

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Table 33-D. Boundary Scan Control Bits

( ) = Alternate function when in UTOPIA backplane mode.

BIT

NAME

TYPE

CONTROL BIT FUNCTION

RCHBLK (UR_SOC)

—

JTMS

—

BPCLK.cntl

—

0 = BPCLK is an input (UR_ENB)

1 = BPCLK is an output

BPCLK (UR_ENB)

I/O

—

JTCLK

—

JTRST

—

RCL

—

JTDI

—

UOP0.cntl

—

0 = UOP0 is an input UT_SOC

1 = UOP0 is an output

UOP0 (UT_SOC)

I/O

—

UOP1.cntl

—

0 = UOP1 is an input UT_ENB

1 = UOP1 is an output

UOP1 (UT_ENB)

I/O

—

JTDO

—

BTS

—

LIUC.cntl

—

0 = LIUC is an input

1 = LIUC is an output (UT_CLAV)

LIUC (UT_CLAV)

I/O

—

8XCLK

—

TSTRST

—

UOP2

—

RTIP

—

RRING

—

RVDD

—

19, 20, 24

RVSS

—

MCLK

—

XTALD

—

UOP3.cntl

—

0 = UOP3 is an input (UT_ADDR0)

1 = UOP3 is an output

UOP3 (UT_ADDR0)

I/O

—

INT

—

TUSEL

—

27, 28

N.C.

—

TTIP

—

TVSS

—

TVDD

—

TRING

—

TCHBLK.cntl

—

0 = TCHBLK is an input (UT_ADDR1)

1 = TCHBLK is an output

TCHBLK

(UT_ADDR1)

I/O

—

TLCLK.cntl

—

0 = TLCLK is an input (UT_ADDR2)

1 = TLCLK is an output

TLCLK (UT_ADDR2)

I/O

—

TLINK (UT_ADDR3)

—

ESIBS0.cntl

—

0 = ESIBS0 is an input

1 = ESIBS0 is an output

ESIBS0

I/O

—

TSYNC.cntl

—

0 = TSYNC is an input

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