ST52F510 datasheet(53/106 Pages) STMICROELECTRONICS

53 / 106 page

ST52F510/F513/F514

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Port B Pull-Up Register (PORT_B_PULLUP)

Configuration Register 28 (01Ch) Read/Write

Reset Value: 0000 0000 (00h)

(*) Not used in 16/20 pin package devices

(**) Not used in 16 pin package devices

Bit 7-0: PUB7-0 Port B pull-up (see Table 7.1)

0: Port B pin without pull-up

1: Port B pin with pull-up

Port B Option Register (PORT_B_OR)

Configuration Register 29 (01Dh) Read/Write

Reset Value: 0000 0000 (00h)

(*) Not used in 16/20 pin package devices

(**) Not used in 16 pin package devices

Bit 7-0: ORB7-0 Port B option (see Table 7.1)

Port B Data Direction Register (PORT_B_DDR)

Configuration Register 30 (01Eh) Read/Write

Reset Value: 0000 0000 (00h)

(*) Not used in 16/20 pin package devices

(**) Not used in 16 pin package devices

Bit 7-0: DDRB7-0 Port B direction (see Table 7.1)

0: Port B pin configured as input

1: Port B pin configured as output

Port B Alternate Fuction (PORT_B_AF)

Configuration Register 31 (01Fh) Read/Write

Reset Value: 0000 0000 (00h)

Note: This register is not used in 16 pin devices

Bit 7: AFB7 Alternate Function PB7

0: Digital I/O

1: AIN7

Bit 6: AFB6 Alternate Function PB6

0: Digital I/O

1: AIN6

Bit 5: AFB5 Alternate Function PB5

0: Digital I/O

1: AIN5

Bit 4: AFB4 Alternate Function PB4

0: Digital I/O

1: AIN4

Bit 3: AFB3 Alternate Function PB3

0: Digital I/O

1: AIN3

Bit 2: AFB2 Alternate Function PB2

0: Digital I/O

1: AIN2

Bit 1: AFB1 Alternate Function PB1

0: Digital I/O

1: AIN1

Bit 0: AFB0 Alternate Function PB0

0: Digital I/O

1: AIN0 / VREF

Port C Pull-Up Register (PORT_C_PULLUP)

Configuration Register 32 (020h) Read/Write

Reset Value: 0000 0000 (00h)

Note: This register is not used in 16/20 pin devices

Bit 7-6: Not Used

Bit 5-0: PUC5-0 Port C pull-up (see Table 7.1)

0: Port C pin without pull-up

PUB7*

PUB6*

PUB5**

PUB4**

PUB3**

PUB2**

PUB1

PUB0

ORB7*

ORB6*

ORB5**

ORB4**

ORB3** ORB2**

ORB1

ORB0

DDRB7* DDRB6* DDRB5** DDRB4** DDRB3** DDRB2** DDRB1

DDRB0

AFB7

AFB6

AFB5

AFB4

AFB3

AFB2

AFB1

AFB0

PUC5

PUC4

PUC3

PUC2

PUC1

PUC0

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