-------------------------------------------------------------------------------
-- TI SN74ABT8543 --
-- IEEE Std 1149.1 (JTAG) Boundary-Scan Test Device --
-- with Octal Registered Bus Transceivers --
-------------------------------------------------------------------------------
-- Created by : Texas Instruments Incorporated --
-- Documentation : SN74ABT8543 Data Sheet (SCBS120) --
-- Product Status: Released to Production (RTP) --
-- BSDL revision : 1.2 --
-- BSDL status : Production --
-- Date created : 05/01/94 --
-- Last modified : 07/26/97 --
-- Modification history - --
-- - misc clean-up, cosmetic only --
-- - remove package constant NT, add package constant DL --
-------------------------------------------------------------------------------
-- --
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-------------------------------------------------------------------------------
entity sn74abt8543 is
generic (PHYSICAL_PIN_MAP : string := "UNDEFINED");
port (LEAB_NEG:in bit;
LEBA_NEG:in bit;
CEAB_NEG:in bit;
CEBA_NEG:in bit;
OEAB_NEG:in bit;
OEBA_NEG:in bit;
A:inout bit_vector(1 to 8);
B:inout bit_vector(1 to 8);
GND, VCC:linkage bit;
TDO:out bit;
TDI, TMS, TCK:in bit);
use STD_1149_1_1990.all; -- Get standard attributes and definitions
attribute PIN_MAP of sn74abt8543 : entity is PHYSICAL_PIN_MAP;
constant JT : PIN_MAP_STRING := "LEAB_NEG:1, LEBA_NEG:28," &
"CEAB_NEG:2, CEBA_NEG:27, OEAB_NEG:3," &
"OEBA_NEG:26, GND:7, VCC:21, TDO:13, TMS:14," &
"TCK:15, TDI:16, A:(4,5,6,8,9,10,11,12)," &
"B:(25,24,23,22,20,19,18,17)";
constant DL : PIN_MAP_STRING := "LEAB_NEG:1, LEBA_NEG:28," &
"CEAB_NEG:2, CEBA_NEG:27, OEAB_NEG:3," &
"OEBA_NEG:26, GND:7, VCC:21, TDO:13, TMS:14," &
"TCK:15, TDI:16, A:(4,5,6,8,9,10,11,12)," &
"B:(25,24,23,22,20,19,18,17)";
constant DW : PIN_MAP_STRING := "LEAB_NEG:1, LEBA_NEG:28," &
"CEAB_NEG:2, CEBA_NEG:27, OEAB_NEG:3," &
"OEBA_NEG:26, GND:7, VCC:21, TDO:13, TMS:14," &
"TCK:15, TDI:16, A:(4,5,6,8,9,10,11,12)," &
"B:(25,24,23,22,20,19,18,17)";
constant FK : PIN_MAP_STRING := "LEAB_NEG:8, LEBA_NEG:7," &
"CEAB_NEG:9, CEBA_NEG:6, OEAB_NEG:10," &
"OEBA_NEG:5, GND:14, VCC:28, TDO:20, TMS:21," &
"TCK:22, TDI:23, A:(11,12,13,15,16,17,18,19)," &
"B:(4,3,2,1,27,26,25,24)";
attribute TAP_SCAN_IN of TDI : signal is true;
attribute TAP_SCAN_MODE of TMS : signal is true;
attribute TAP_SCAN_OUT of TDO : signal is true;
attribute TAP_SCAN_CLOCK of TCK : signal is (50.0e6, BOTH);
attribute INSTRUCTION_LENGTH of sn74abt8543 : entity is 8;
attribute INSTRUCTION_OPCODE of sn74abt8543 : entity is
"BYPASS (11111111, 10000001), " &
"EXTEST (00000000), " &
"SAMPLE (10000010), " &
"INTEST (00000011), " &
"HIGHZ (00000110), " & -- Control Boundary to High-Impedance
"CLAMP (10000111), " & -- Control Boundary to 1/0
"RUNT (00001001), " & -- Boundary Run Test
"READBN (00001010), " & -- Boundary Read Normal Mode
"READBT (10001011), " & -- Boundary Read Test Mode
"CELLTST(00001100), " & -- Boundary Self-Test Normal Mode
"TOPHIP (10001101), " & -- Boundary Toggle Outputs Test Mode
"SCANCN (10001110), " & -- BCR Scan Normal Mode
"SCANCT (00001111) " ; -- BCR Scan Test Mode
attribute INSTRUCTION_CAPTURE of sn74abt8543 : entity is "10000001";
attribute INSTRUCTION_DISABLE of sn74abt8543 : entity is "HIGHZ";
attribute INSTRUCTION_GUARD of sn74abt8543 : entity is "CLAMP";
attribute REGISTER_ACCESS of sn74abt8543 : entity is
"BOUNDARY (EXTEST, SAMPLE, INTEST, READBN, READBT, CELLTST)," &
"BYPASS (BYPASS, HIGHZ, CLAMP, RUNT, TOPHIP)," &
"BCR[11] (SCANCN, SCANCT)" ;
attribute BOUNDARY_CELLS of sn74abt8543 : entity is "BC_1";
attribute BOUNDARY_LENGTH of sn74abt8543 : entity is 40;
attribute BOUNDARY_REGISTER of sn74abt8543 : entity is
"0 (BC_1, B(1) ,output3 , X, 39, 0, Z)," &
"1 (BC_1, B(2) ,output3 , X, 39, 0, Z)," &
"2 (BC_1, B(3) ,output3 , X, 39, 0, Z)," &
"3 (BC_1, B(4) ,output3 , X, 39, 0, Z)," &
"4 (BC_1, B(5) ,output3 , X, 39, 0, Z)," &
"5 (BC_1, B(6) ,output3 , X, 39, 0, Z)," &
"6 (BC_1, B(7) ,output3 , X, 39, 0, Z)," &
"7 (BC_1, B(8) ,output3 , X, 39, 0, Z)," &
"8 (BC_1, B(1) ,input , X)," &
"9 (BC_1, B(2) ,input , X)," &
"10 (BC_1, B(3) ,input , X)," &
"11 (BC_1, B(4) ,input , X)," &
"12 (BC_1, B(5) ,input , X)," &
"13 (BC_1, B(6) ,input , X)," &
"14 (BC_1, B(7) ,input , X)," &
"15 (BC_1, B(8) ,input , X)," &
"16 (BC_1, A(1) ,output3 , X, 38, 0, Z)," &
"17 (BC_1, A(2) ,output3 , X, 38, 0, Z)," &
"18 (BC_1, A(3) ,output3 , X, 38, 0, Z)," &
"19 (BC_1, A(4) ,output3 , X, 38, 0, Z)," &
"20 (BC_1, A(5) ,output3 , X, 38, 0, Z)," &
"21 (BC_1, A(6) ,output3 , X, 38, 0, Z)," &
"22 (BC_1, A(7) ,output3 , X, 38, 0, Z)," &
"23 (BC_1, A(8) ,output3 , X, 38, 0, Z)," &
"24 (BC_1, A(1) ,input , X)," &
"25 (BC_1, A(2) ,input , X)," &
"26 (BC_1, A(3) ,input , X)," &
"27 (BC_1, A(4) ,input , X)," &
"28 (BC_1, A(5) ,input , X)," &
"29 (BC_1, A(6) ,input , X)," &
"30 (BC_1, A(7) ,input , X)," &
"31 (BC_1, A(8) ,input , X)," &
"32 (BC_1, CEBA_NEG,input , X)," &
"33 (BC_1, CEAB_NEG,input , X)," &
"34 (BC_1, LEBA_NEG,input , X)," &
"35 (BC_1, LEAB_NEG,input , X)," &
"36 (BC_1, OEBA_NEG,input , X)," &
"37 (BC_1, OEAB_NEG,input , X)," &
"38 (BC_1, * ,controlr, 0)," &
"39 (BC_1, * ,controlr, 0) " ;
end sn74abt8543;