CY8CTMA120-56LTXIT Cypress Semiconductor Corp, CY8CTMA120-56LTXIT Datasheet - Page 4

• Manufacturer Part Number: CY8CTMA120-56LTXIT
• Description: CY8CTMA120-56LTXIT
• Manufacturer: Cypress Semiconductor Corp
• Series: TrueTouch™r

Specifications of CY8CTMA120-56LTXIT

• Applications: Touchscreen Controller
• Core Processor: M8C
• Program Memory Type: FLASH (16 kB)
• Controller Series: CY8CT
• Ram Size: 1K x 8
• Interface: I²C, SPI, UART/USART, USB
• Voltage - Supply: 3 V ~ 5.25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 56-VQFN Exposed Pad, 56-HVQFN, 56-SQFN, 56-DHVQFN
• Processor Series: CY8CTxx1xx
• Core: M8C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of I /o: -
• Lead Free Status / Rohs Status: Details

References
[1] Document # 001-46932 CY8CTST120 TrueTouch™ Single-Touch Touchscreen Controller (Final)
[2] Document # 001-46929 CY8CTMG120 TrueTouch™ Multi-Touch Gesture Touchscreen Controller (Final)
[3] Document # 001-46901 CY8CTMA120 TrueTouch™ Multi-Touch All-Point Touchscreen Controller (Final)
September 25, 2008
.loop:
;;
;; 24Mhz read PMA workaround (back to previous clock speed)
;;
;; end 24Mhz read PMA workaround
mov A, reg[PMA0_DR] ; Get the data from the PMA space
mov [X], A ; save it in data array
inc X ; increment the pointer
dec [USB_APITemp+1] ; decrement the counter
jnz .loop ; wait for count to zero out
and A, 0xf8 ;clear the clock bits (briefly chg the cpu_clk to 3Mhz)
or A, 0x02 ;will set clk to 12Mhz
mov reg[OSC_CR0],A ;clk is now set at 12Mhz
M8C_SetBank0
pop A ;recover previous reg[OSC_CR0] value
M8C_SetBank1
mov reg[OSC_CR0],A ;clk is now set at previous value
M8C_SetBank0
Document No. 001-49038 Rev. **
CY8CTST120, CY8CTMG120, CY8CTMA120
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