Maxim-integrated MAXQ Family Users Guide: MAXQ2000 Supplement Manual do Utilizador descarregar pdf (Página 36)

MAXQ Family User’s Guide:

MAXQ2000 Supplement

The port pins on the MAXQ2000 operate the same as standard MAXQ port pins, with input/output states defined according to Table 12.

Table 12. MAXQ2000 Port Pin Input/Output States

PORT PIN TYPE SPECIAL FUNCTION ENABLED WHEN

P4.0 Input JTAG Interface—TAP Clock (TCK) (SC.7) TAP=1

P4.0 Input External Interrupt 8 EX8=1

P4.1 Input JTAG Interface—TAP Data Input (TDI) (SC.7) TAP=1

P4.1 Input External Interrupt 9 EX9=1

P4.2 Input JTAG Interface—TAP Mode Select (TMS) (SC.7) TAP=1

P4.3 Input JTAG Interface—TAP Data Output (TDO) (SC.7) TAP=1

P5.4 Input/Output SPI Slave Select (SSEL) SPIEN=1

P5.5 Input/Output SPI Master Out-Slave In (MOSI) SPIEN=1

P5.6 Input/Output SPI Slave Clock (SCLK) SPIEN=1

P5.7 Input/Output SPI Master In-Slave Out (MISO) SPIEN=1

P6.0 Output Timer 1 (Type 2) Secondary Output (T2PB) T2OE = 10b or 11b

P6.0 Input External Interrupt 12 EX12=1

P6.1 Input/Output Timer 1 (Type 2) Input/Output (T2P) T2OE = 01b or 11b, or G2EN = 1

P6.1 Input External Interrupt 13 EX13=1

P6.4 Output Timer 0 (Type 2) Secondary Output (T2PB) T2OE = 10b or 11b

P6.4 Output Wakeup Output 0 WKE0=1

P6.5 Input/Output Timer 0 (Type 2) Input/Output (T2P) T2OE = 01b or 11b, or G2EN = 1

P6.5 Output Wakeup Output 1 WKE1=1

P7.0 Output Serial UART 0 Transmit SBUF0 written

P7.0 Input External Interrupt 14 EX14=1

P7.1 Input Serial UART 0 Receive REN=1

P7.1 Input External Interrupt 15 EX15=1

PDx.y POx.y PORT PIN MODE PORT PIN (Px.y) STATE

0 0 Input Tri-state

0 1 Input Weak pullup HIGH

1 0 Output Strong drive LOW

1 1 Output Strong drive HIGH

Table 11. Port Pin Special Functions (56-Pin Package) (continued)

Maxim Integrated

1 2 ... 31 32 33 34 35 36 37 38 39 40 41 ... 92 93

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Maxim-integrated MAXQ Family Users Guide: MAXQ2000 Supplement Manual do Utilizador Página 36