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ST10F280 Datasheet(PDF) 134 Page - STMicroelectronics

Part # ST10F280
Description  16-bit MCU with MAC unit, 512 Kbyte Flash memory and 18 Kbyte RAM
PDF  239 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST10F280 Datasheet(HTML) 134 Page - STMicroelectronics

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Parallel ports
ST10F280
134/239
Doc ID 8673 Rev. 3
12.11
XPort 9
The XPort9 is enabled by setting XPEN bit 2 of the SYSCON register and XPORT9EN bit 3
of the new XPERCON register. On the XBUS interface, the register are not bit-addressable
This 16-bit port is used for general purpose I/O, the direction of each line can be configured
via the corresponding direction register XDP9. Each port line can be switched into push/pull
or open drain mode via the open drain control register XODP9.
All port lines can be individually (bit-wise) programmed. The “bit-addressable” feature is
available via specific “Set” and “Clear” registers: XP9SET, XP9CLR, XDP9SET, XDP9CLR,
XODP9SET, XODP9CLR.
XP9
Address:
0xC100h
Reset:
0x0000h
Type:
R/W
XP9SET (C102h)
Address:
0xC102h
Reset:
0x0000h
Type:
W
15
14
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2
1
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
XP9.y Port data register XP9 bit y
15
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0
WW
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XP9SET.y Writing a ‘1’ will set the corresponding bit in XP9 register, Writing a ‘0’ has no effect.



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