Revision - Motorola PL3307 Integration Manual

7 - 2 PL3307 Decoder Integration Guide
All commands sent between the decoder and host must use the format described in the SSI Message Formats
section. SSI Transactions on page 7-3
Table 7-1 lists all the SSI opcodes the decoder supports. It identifies the SSI partner allowed to send a
message of each type. The host transmits opcodes designated type H. The decoder transmits type D opcodes,
and either partner can transmit Host/Decoder (H/D) types.
SSI Commands
Table 7-1
Name
AIM_OFF
AIM_ON
BEEP
CAPABILITIES_REPLY
CAPABILITIES_REQUEST
CMD_ACK
CMD_NAK
DECODE_DATA
EVENT
LED_OFF
LED_ON
PARAM_DEFAULTS
PARAM_REQUEST
PARAM_SEND
REPLY_ID
REPLY_REVISION
REQUEST_ID
REQUEST_REVISION
SCAN_DISABLE
SCAN_ENABLE
SLEEP
START_DECODE
STOP_DECODE
WAKEUP
For details of the SSI protocol, refer to the Simple Serial Interface Programmer's Guide (72-40451-xx).
describes the required sequence of messages in specific cases.
Type Opcode
H 0xC4 Deactivate aim pattern.
H 0xC5 Activate aim pattern.
H 0xE6 Sound the beeper.
D 0xD4 Reply to CAPABILITIES_REQUEST; contains a list of the
capabilities and commands the decoder supports.
H 0xD3 Request capabilities report from the decoder.
H/D 0xD0 Positive acknowledgment of received packet.
H/D 0xD1 Negative acknowledgment of received packet.
D 0xF3 Decode data in SSI packet format.
D 0xF6 Event indicated by associated event code.
H 0xE8 De-activate LED output.
H 0xE7 Activate LED output.
H 0xC8 Set parameter default values.
H 0xC7 Request values of certain parameters.
H/D 0xC6 Send parameter values.
D 0xA6 Reply to REQUEST_ID; contains decoder's serial number.
D 0xA4 Reply to REQUEST_REVISION contains decoder's
software/hardware configuration.
H 0xA3 Request the decoder's serial number.
H 0xA3 Request the decoder's configuration.
H 0xEA Prevent the operator from scanning bar codes.
H 0xE9 Permit bar code scanning.
H 0xEB Request to place the decoder into low power.
H 0xE4 Tell decoder to attempt to decode a bar code.
H 0xE5 Tell decoder to abort a decode attempt.
H N/A Wakeup decoder after it has entered low power mode.
Description