ST10F269Z2QX datasheet(73/161 Pages) STMICROELECTRONICS

tên linh kiện	ST10F269Z2QX

Giải thích chi tiết về linh kiện	16-BIT MCU WITH MAC UNIT, 256K BYTE FLASH MEMORY AND 12K BYTE RAM

PDF	161 Pages

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nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

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ST10F269Z2Qx

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12.7 - Port 4

If this 8-bit port is used for general purpose I/O, the direction of each line can be configured via the

corresponding direction register DP4.

P4 (FFC8h / E4h)

SFR

Reset Value: --00h

DP4 (FFCAh / E5h)

SFR

Reset Value: --00h

For CAN configuration support (see section 15), Port 4 has an open drain function, controlled with the

ODP4 register:

ODP4 (F1CAh / E5h)

ESFR

Reset Value: --00h

Note: Only bit 6 and 7 are implemented, all other bit will be read as “0”.

876

321

P4.7

P4.6

P4.5

P4.4

P4.3

P4.2

P4.1

P4.0

P4.y

Port Data Register P4 Bit y

876

321

DP4.7 DP4.6 DP4.5 DP4.4 DP4.3 DP4.2 DP4.1 DP4.0

DP4.y

Port Direction Register DP4 Bit y

DP4.y = 0: Port line P4.y is an input (high-impedance)

DP4.y = 1: Port line P4.y is an output

543210

ODP4.7 ODP4.6

------

ODP4.y

Port 4 Open Drain Control Register Bit y

ODP4.y = 0: Port line P4.y output driver in push/pull mode

ODP4.y = 1: Port line P4.y output driver in open drain mode if P4.y is not a segment

address line output

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