T8207 Datasheet, PDF (76/158 Pages) Agere Systems – ATM Interconnect

CelXpres T8207
ATM Interconnect
Advance Data Sheet
September 2001
13 JTAG Test Access Port (continued)
13.2 Boundary-Scan Register
The boundary-scan register (BSR) is 222 bits in length. Table 22 gives descriptions of each cell in the boundary-
scan chain beginning with the least significant bit.
Table 22. Boundary-Scan Register Descriptions
Boundary-Scan
Register Bit
0—4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29—60
61
62
63
64
65—72
73
74—81
82
83
Name
UA_N(0:4)
ENARB_OE
ENARB
CKOE_IN
CKO
CKOE
GPIO_OE(0)
GPIO(0)
GPIO_OE(1)
GPIO(1)
GPIO_OE(2)
GPIO(2)
GPIO_OE(3)
GPIO(3)
GPIO_OE(4)
GPIO(4)
GPIO_OE(5)
GPIO(5)
GPIO_OE(6)
GPIO(6)
GPIO_OE(7)
GPIO(7)
MUX
RESET_N
CB_ACK_N
CB_D_N(0:31)
CB_F_N
CB_DISBL
CB_RC_N
CB_WC_N
A(0:7)
D_OE
D(0:7)
MOTO
RD_WR_N
Pin Name
Description
ua*[0:4] Input.
—
ENARB is an input when ENARB_OE = 0.
arb_enb* Bidirectional.
—
CKO is high impedance when CKOE_IN = 0.
cko
3-statable output.
cko_e Input.
—
GPIO(0) is an input when GPIO_OE(0) = 0.
gpio[0] Bidirectional.
—
GPIO(1) is an input when GPIO_OE(1) = 0.
gpio[1] Bidirectional.
—
GPIO(2) is an input when GPIO_OE(2) = 0.
gpio[2] Bidirectional.
—
GPIO(3) is an input when GPIO_OE(3) = 0.
gpio[3] Bidirectional.
—
GPIO(4) is an input when GPIO_OE(4) = 0.
gpio[4] Bidirectional.
—
GPIO(5) is an input when GPIO_OE(5) = 0.
gpio[5] Bidirectional.
—
GPIO(6) is an input when GPIO_OE(6) = 0.
gpio[6] Bidirectional.
—
GPIO(7) is an input when GPIO_OE(7) = 0.
gpio[7] Bidirectional.
mux Input.
reset* Input.
cb_ack* Bidirectional.
cb_d*[0:31] Bidirectional.
cb_fs* Bidirectional.
cb_disable* Input.
cb_rc* Input.
cb_wc* Input.
a[0]/ale, Input.
a[1:7]
—
D(0:7) are inputs when D_OE = 0.
d[0:7] Bidirectional.
mot_sel Input.
rd*_rw* Input.
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