Table 11-5. Jidr Field Descriptions Dsp1617/18/27/28/29 - Lucent Technologies DSP1617 Information Manual

Information Manual
April 1998
11.3 Elements of the JTAG Test Logic
11.3.6 The Device Identification Register—JIDR (continued)
A description of each field for the DSP1617/18/27/28/29 only follows:
The Manufacturer Identity Field: Bits 11—0 of the JIDR make up the manufacturer identity field containing a
compressed form of the JEDEC standard manufacturer's identification code. The assigned Lucent Technologies
identification code is 0x03B.
Part Number Field: Bits 18—12 contain the DSP1617/18/27/28/29 unique part number. The ROM code is con-
tained in bits 27—19.
The Version Field: Bits 31—28 contain the RESERVED, SECURE, and CLOCK fields as described in
A DR-scan cycle of the JIDR produces a 32-bit binary pattern with the LSB being shifted out first from the TDO dur-
ing the shift-DR state. The following table summarizes the fields of JIDR for the DSP1617/18/27/28/29 only.

Table 11-5. JIDR Field Descriptions DSP1617/18/27/28/29

Bit 31
Field RESERVED
Field Value
RESERVED 0
SECURE 0
1
CLOCK 00
01
10
11
ROMCODE —
ROMCODE A B
LETTER
VALUE
0 1
PART ID Part ID (HEX)
DSP1617
DSP1618
DSP1618x24
DSP1627
DSP1627x32
DSP1628x08
DSP1628x16
DSP1629x10
DSP1629x16
Lucent Technologies Inc.
DSP1611/17/18/27/28/29 DIGITAL SIGNAL PROCESSOR
30
SECURE CLOCK
Nonsecure ROM option.
Secure ROM option.
TTL level input clock option.
Small-signal input clock option.
Crystal oscillator input clock option.
CMOS level input clock option.
Users ROMCODE ID:
The ROMCODE ID is the 9-bit binary value of the following expression:
(20 x value for first letter) + (value of second letter), where the values of the letters are in
the following table. For example, ROMCODE GK is
(20 x 6) + (9) = 129 or 0 1000 0001.
C D E F G
2 3 4 5 6
Part ID (Binary)
0x18 0011000
0x19 0011001
0x1D 0011101
0x1C 0011100
0x2C 0101100
0x2A 0101010
0x2A 0101010
0x29 0101001
0x29 0101001
DRAFT COPY
(continued)
29—28 27—19
ROMCODE
Mask-Programmable Features
H J K L M
7 8 9 10 11
JTAG Test Access Port
18—12
PART ID
N P R S T
12 13 14 15 16
Table 11-5.
11—0
0x03B
U W Y
17 18 19
11-17