Reset error & manufacturer identification, Device identification, Hardware version – CH Tech EM405D User Manual
Page 30: Firmware version, Figure 7. em405d registers
24
Reg. 00
Reset Error & Manufacturer Identification
Byte
1
0
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Write
RERR
-
-
-
Read Only
Read
RERR
0
0
0
MID
RERR Reset Error (writing a 1 clears the error condition)
1
MID Manufacturer ID (always FC1
16
- C&H)
Notes:
1. This bit is set if a command error occurs. If an error exists, only reads or writes to this register are
allowed. The RERR bit must be cleared by writing a 1 to this bit before normal command operation
will resume. See 4.3.1 for further details.
Reg. 02
Device Identification
Byte
3
2
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Write
-
-
-
-
Read Only
Read
ETH
0
0
0
DID
ETH Ethernet Type (0 = wired, 1 = wireless (Wi-Fi))
DID Device ID (always FDB
16
- EM405D)
Reg. 04
Hardware Version
Byte
5
4
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Write
Read Only
Read Only
Read
HW Major
HW Minor
HW Major Major Version Level of EM405D Hardware
HW Minor Minor Version Level of EM405D Hardware
Reg. 06
Firmware Version
Byte
7
6
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Write
Read Only
Read Only
Read
FW Major
FW Minor
FW Major Major Version Level of EM405D Firmware
FW Minor Minor Version Level of EM405D Firmware
Figure 7. EM405D Registers