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Table 12. maxq2000 port pin input/output states, Maxq family user’s guide: maxq2000 supplement – Maxim Integrated MAXQ Family Users Guide: MAXQ2000 Supplement User Manual

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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

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