HD6433935 Hitachi, HD6433935 Datasheet - Page 384

• Manufacturer Part Number: HD6433935
• Description: 8-Bit MICROCONTROLLER
• Manufacturer: Hitachi

x: Unused bits. The value of these bits is not guaranteed.
12.4.8
The Part ID Packet is sent by the FLEX decoder whenever the FLEX decoder is disabled due to
the checksum feature. See 12.3.1, Checksum Packet for a description of the checksum feature.
Since the FLEX decoder is disabled after reset, this is the first packet that will be received by the
host after reset. The ID of the Part ID Packet is 255 (decimal).
Table 12-29 Part ID Packet Bit Assignments
Byte 3
Byte 2
Byte 1
Byte 0
MDL: Model. This identifies the FLEX decoder model. Current value is 0.
CID: Compatibility ID. This value describes the FLEX decoders to which this part is backwards
compatible. See table below for meaning and current value.
Notes: 1. Compatibility to FLEX Alphanumeric Decoder II is indicated by MDL set to 0, CID 0 set
REV: Revision. This identifies the revision and manufacturer of the FLEX decoder. The
following table lists the currently available part ID’s of the FLEX decoder family.
372
Bit
CID
CID
CID
0
1
2
2. Compatibility to FLEX Roaming Decoder II is indicated by MDL set to 0, CID 1 set to 1,
Bit 7
1
MDL
CID
REV
Indicates this IC can be used in place of
FLEX Alphanumeric Decoder I*
FLEX Roaming Decoder I*
FLEX Numeric Decoder
Part ID Packet
to 1, and REV greater than or equal to 7.
and REV greater than or equal to 8.
7
1
7
Bit 6
1
MDL
CID
REV
6
0
6
Bit 5
1
CID
CID
REV
13
5
2
5
1
Bit 4
1
CID
CID
REV
4
12
4
Bit 3
1
CID
CID
REV
Value for FLEX
1 (TRUE)
1 (TRUE)
0 (FALSE)
11
3
3
Bit 2
1
CID
CID
REV
10
2
TM
2
Roaming Decoder II
Bit 1
1
CID
CID
REV
9
1
1
Bit 0
1
CID
CID
REV
8
0
0