Document Version 1.0
Last revised on
2018-‐10-‐22
Page 74 of 79
Reference Manual for uTrust 5501 F Reader/Writer Module
DataIn =
81 00 01
DataOut:
00 00 03 5D
(4 bytes)
6.3.5.13.
CONTACT_GET_SET_GUARDTIME
Thi
s Escape command is used to get/set the character/block guard time of the reader. The guard time
is specified in terms of ETU. Once set, the new guard time will take effect immediately.
Input:
The input buffer contains the escape code followed by an 8 bit get/set identifier, an 8 bit guard time
identifier, and a 32 bit guard time value in ETU.
Byte0
Byte1
Byte2
Byte3
Byte4
Byte5
Byte6
Value
Description
Value
Description
Guard time in ETU
Escape
code
(0x82)
0x01
SET
Guard
time
0x00
CGT
BIT31-‐
BIT24
BIT23-‐
BIT16
BIT15-‐
BIT8
BIT7-‐
BIT0
0x01
BGT
0x00
GET Guard
time
0x00
CGT
-‐
-‐
-‐
-‐
0x01
BGT
Output:
For get/set guard time, the output will be the character/block guard time value.
Byte0
Byte1
B
yte2
Byte3
Character Guard time in ETU
BIT31-‐BIT24
BIT23-‐BIT16
BIT15-‐BIT8
BIT7-‐BIT0
DataIn =
82 00 01
DataOut:
00 00 00 18
(4 bytes)