M38B53M4-059FP datasheet(91/355 Pages) MITSUBISHI

91 / 355 page

2-3

APPLICATION

2.1 I/O port

38B5 Group User’s Manual

2.1.2 Relevant registers

Fig. 2.1.2 Structure of port Pi (i = 0, 1, 2, 3, 4, 5, 7, 8)

Port Pi

b7 b6 b5 b4 b3 b2 b1 b0

Port Pi (i = 0, 1, 2, 3, 4, 5, 7, 8)

(Pi: addresses 0016, 0216, 0416, 0616, 0816, 0A16, 0E16, 1016)

Port Pi0

qIn output mode

Write •••••••• Port latch

Read •••••••• Port latch

qIn input mode

Write •••••••• Port latch

Read •••••••• Value of pin

Port Pi1

Port Pi2

Port Pi3

Port Pi4

Port Pi5

Port Pi6

Port Pi7

Functions

Name

At reset R W

Port P6

b7 b6 b5 b4 b3 b2 b1 b0

Port P6

(P6: address 0C16)

Port P60

qIn output mode

Write •••••••• Port latch

Read •••••••• Port latch

qIn input mode

Write •••••••• Port latch

Read •••••••• Value of pin

Port P61

Port P62

Port P63

Port P64

Port P65

Functions

Name

At reset R W

Nothing is arranged for these bits. When these

bits are read out, the contents are undefined.

Fig. 2.1.3 Structure of port P6

Port P9

b7 b6 b5 b4 b3 b2 b1 b0

Port P9

(P9: address 1216)

Port P90

qIn output mode

Write •••••••• Port latch

Read •••••••• Port latch

qIn input mode

Write •••••••• Port latch

Read •••••••• Value of pin

Port P91

Functions

Name

At reset R W

Nothing is arranged for these bits. When these

bits are read out, the contents are undefined.

Fig. 2.1.4 Structure of port P9

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