CY8C54 CYPRESS [Cypress Semiconductor], CY8C54 Datasheet - Page 28

• Manufacturer Part Number: CY8C54
• Description: Programmable System-on-Chip (PSoC)
• Manufacturer: CYPRESS [Cypress Semiconductor]

Document Number: 001-55036 Rev. *A
Digital Input Path
Digital Output Path
Digital Input Path
Digital Output Path
PRT[x]DR
PRT[x]SIO_HYST_EN
PRT[x]SIO_DIFF
Reference Level
PRT[x]DBL_SYNC_IN
PRT[x]PS
Digital System Input
PICU[x]INTTYPE[y]
PICU[x]INTSTAT
Reference Level
PRT[x]SIO_CFG
PRT[x]SLW
PRT[x]SYNC_OUT
Digital System Output
PRT[x]BYP
PRT[x]DM2
PRT[x]DM1
PRT[x]DM0
Bidirectional Control
PRT[x]BIE
Pin Interrupt Signal
PICU[x]INTSTAT
USBIO_CR1[4,5]
USB Receiver Circuitry
PRT[x]DBL_SYNC_IN
USBIO_CR1[0,1]
Digital System Input
PICU[x]INTTYPE[y]
PICU[x]INTSTAT
PRT[x]SYNC_OUT
USBIO_CR1[7]
USB SIE Control for USB Mode
Digital System Output
PRT[x]BYP
USBIO_CR1[2]
USBIO_CR1[3]
USBIO_CR1[6]
Pin Interrupt Signal
PICU[x]INTSTAT
Figure 6-7. SIO Input/Output Block Diagram
PRELIMINARY
Figure 6-8. USBIO Block Diagram
0
1
0
1
Interrupt
Interrupt
Logic
Logic
Thresholds
In
OE
USB or I/O
In
D+ 1.5k
D+D- 5k
Open Drain
Drive
Logic
Buffer
Drive
Logic
Input Buffer Disable
PSoC
Slew
Cntl
Vio
®
5k
Naming Convention
Vio
5: CY8C54 Family Data Sheet
Naming Convention
‘x’ = Port Number
‘y’ = Pin Number
Driver
Vhigh
D+ pin only
‘x’ = Port Number
‘y’ = Pin Number
1.5k
3.3V
Vio
PIN
PIN
Page 28 of 93
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