28 / 41 page
MCS7840
USB-2.0 to Four Serial Ports
Page 28
Rev.
1.2
EEPROM Content Layout
Bytes
# of Bytes
Name
Description
[1:0]
2
EE Check
EEPROM Present Check value = 0x9710
[3:2]
2
VID
Vendor ID = 0x9710
[5:4]
2
PID
Product ID = 0x7840
[7:6]
2
RN
Release Number in BCD format = 0x0001
8
1
SER1_DCR0
Device Configuration Registers (SER1_DCR0)
9
1
SER1_DCR1
Device Configuration Registers (SER1_DCR1)
10
1
SER1_DCR2
Device Configuration Registers (SER1_DCR2)
11
1
SER2_DCR0
Device Configuration Registers (SER2_DCR0)
12
1
SER2_DCR1
Device Configuration Registers (SER2_DCR1)
13
1
SER2_DCR2
Device Configuration Registers (SER2_DCR2)
14
1
SER3_DCR0
Device Configuration Registers (SER3_DCR0)
15
1
SER3_DCR1
Device Configuration Registers (SER3_DCR1)
16
1
SER3_DCR2
Device Configuration Registers (SER3_DCR2)
17
1
SER4_DCR0
Device Configuration Registers (SER4_DCR0)
18
1
SER4_DCR1
Device Configuration Registers (SER4_DCR1)
19
1
SER4_DCR2
Device Configuration Registers (SER4_DCR2)
20
1
intr_pg_fs
Binterval value for Full Speed
21
1
intr_pg_hs
Binterval value for High Speed
[23:22]
2
Language ID
Language ID in HEX Format (0x0409 default)
[71:24]
48
Manufacture ID
“MosChip Semiconductor” in UNICODE
[113:72]
42
Product Name
“USB-Serial Controller” in UNICODE
[129:114]
16
Serial Number
“X7X6X5X4X3X2X1X0” in UNICODE
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