TMP93CS44 datasheet(71/224 Pages) TOSHIBA

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TMP93CS44/S45

2004-02-10

93CS44-69

Port 6 Register

Bit symbol

P67

P66

P65

P64

P63

P62

P61

P60

(0012H)

Read/Write

R/W

After reset

Output mode

Input mode

Note 1:

When P6 is used in the input mode, P6 register controls the built-in pull-up resistor. Read-modify-write is

prohibited in the input mode or the I/O mode. Setting the built-in pull-up resistor may be depended on the

states of the input pin.

Port 6 Control Register

Bit symbol

P67C

P66C

P65C

P64C

P63C

P62C

P61C

P60C

P6CR

(0014H)

Read/Write

After reset

Function

0: Input

1: Output

Note: Output buffer for port 66, 67 is an open-drain output type.

Port 6 Function Register

Bit symbol

P65F

P63F

P62F

P60F

P6FC

(0016H)

Read/Write

After reset

Function

0: Port

1: SCLK1

0: Port

1: TXD1

0: Port

1: SCLK0

0: Port

1: TXD0

Prohibit

read-

modify-

write

Note 2: To set the TXD pin to open drain, write “1” in bit0 (for TXD0 pin) or bit1 (for TXD1 pin) of the ODE register.

P61/RXD0, P64/RXD1 pins do not have a register changing port/function.

When using as input ports, the serial receive data is input to SIO.

Note 3:

Notes on using low-frequency oscillation circuit. To connect a low frequency resonator to port 66, 67, it is

necessary to set the following procedures to reduce the consumption power supply.

(Connecting to a resonator)

Set P6CR<P66C:P67C>

= “11”, P6<P66:67> = “00”

(Connecting to an oscillator)

Set P6CR<P66C:P67C>

= “11”, P6<P66:67> = “10”

Figure 3.5.19 Register for Port 6

P60 TXD0 output setting (Note)

P6FC<P60F>

P6CR<P60C>

P62 SCLK0 output setting

P6FC<P62F>

P6CR<P62C>

P63 TXD1 output setting (Note)

P6FC<P63F>

P6CR<P63C>

P65 SCLK1 output setting

P6FC<P65F>

P6CR<P65C>

Prohibit

read-

modify-

write

Port 6 I/O setting

Input

Output

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