CY8C20121-SX1I Cypress Semiconductor Corp, CY8C20121-SX1I Datasheet - Page 8

• Manufacturer Part Number: CY8C20121-SX1I
• Description: CY8C20121-SX1I
• Manufacturer: Cypress Semiconductor Corp
• Series: CapSense Express™ CY8C20xxxr

Specifications of CY8C20121-SX1I

• Controller Type: Capacitive Sensing Controller
• Interface: I²C
• Voltage - Supply: 2.4 V ~ 5.25 V
• Current - Supply: 1.5mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Processor Series: CY8C201xx
• Core: M8C
• Program Memory Type: Flash
• Interface Type: I2C
• Operating Supply Voltage: 2.4 V to 5.25 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: CY3218-CAPEXP1
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 5. Register Map
Document Number: 001-53516 Rev. *E
Notes
3. These registers are writable only after entering into setup mode. All other registers are available for read and write in normal and setup mode.
4. These registers are available only in CY8C20121 device.
5. The Ack times specified are 1x I2C Ack times.
OUTPUT_PORT
CS_ENABLE
DIG_ENABLE
SET_STRONG_DM
OP_SEL_0
LOGICAL_OPR_INPUT0
OP_SEL_1
LOGICAL_OPR_INPUT1
CS_NOISE_TH
CS_BL_UPD_TH
CS_SETL_TIME
CS_OTH_SET
CS_HYSTERISIS
CS_DEBOUNCE
CS_NEG_NOISE_TH
CS_LOW_BL_RST
CS_FILTERING
CS_SCAN_POS_0
CS_SCAN_POS_1
CS_FINGER_TH_0
CS_FINGER_TH_1
CS_IDAC_0
CS_IDAC_1
I2C_ADDR_LOCK
DEVICE_ID
DEVICE_STATUS
I2C_ADDR_DM
CS_READ_BUTTON
CS_READ_BLM
CS_READ_BLL
CS_READ_DIFFM
CS_READ_DIFFL
CS_READ_RAWM
CS_READ_RAWL
CS_READ_STATUS
COMMAND_REG
Name
[4]
[4]
[4]
[4]
[4]
Register
Address
(in Hex)
1C
1E
4E
4F
5C
5D
7A
7B
7C
A0
04
07
08
11
21
23
50
51
52
53
54
55
56
66
67
70
71
79
81
82
83
84
85
86
87
88
Access
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
W
W
R
R
R
R
R
R
R
R
R
Writable
Mode
Only in
Setup
Yes
Yes
Yes
Yes
Yes
Yes
Yes
[3]
1 Button
Values of Registers
Factory Default
NA
NA
NA
NA
NA
NA
NA
A0
0A
0A
01
01
01
01
82
01
28
64
00
03
14
14
20
00
64
01
11
03
80
81
00
(in Hex)
2 Button
NA
NA
NA
NA
NA
NA
NA
03
03
03
03
82
01
82
02
28
64
A0
00
0A
03
14
14
20
00
01
64
64
0A
0A
01
21
03
80
81
00
Time in Normal
I
CY8C20111, CY8C20121
Mode (ms)
2
C Max ACK
0.10
0.12
0.12
0.12
0.12
0.11
0.11
0.11
0.11
0.11
0.11
0.11
0.14
0.14
0.14
0.14
0.11
0.11
0.11
0.11
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.10
[5]
ACK Time in
I
2
(ms)
Setup
Mode
C Max
11
11
11
11
11
11
11
11
11
35
35
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
[5]
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