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Notes on H8S/2695
1. Notes on P35 Pin Functions (SCK1, SCK4) in H8S/2695
The following restrictions apply to the functions of P35 (SCK1, SCK4) in the H8S/2695. The
functions indicated by *2 below cannot be used in the H8S/2695, and these combinations must not
be set.
(1) P35 Pin Functions in H8S/2633 Series and H8S/2633R
ICE
CKE1(SCI1)
CKE1(SCI4)
C/A(SCI1)
C/A(SCI4)
CKE0(SCI1)
CKE0(SCI4)
P35DDR
0
Pin function
P35
input pin
(2) P35 Pin Functions in H8S/2695
CKE1(SCI1)
CKE1(SCI4)
C/A(SCI1)
C/A(SCI4)
CKE0(SCI1)
CKE0(SCI4)
P35DDR
0
Pin function
P35
input pin
Notes: *1 The output type is normally NMOS push-pull output, but NMOS open-drain output when
P35ODR = 1.
*2 These combinations must not be set.
*3 If SCK1 and SCK4 are used as input (clock input) pins on the H8S/2695, P35DDR must
be cleared to 0.
2. Notes on H8S/2695 Development (Using H8S/2633 Emulator Chip)
The H8S/2695 is not equipped with an I2C bus function and output from pins 34 and 35 is CMOS
output (unless P34ODR or P35ODR is set to 1, respectively). These pins are used for NMOS
push-pull output on the H8S/2633 emulator chip, so the output characteristics of these pins are
different than is the case with the H8S/2695. If it is necessary to use pins 34 and 35 for CMOS
output, use an appropriate resistance to pull up pins 34 and 35 of the H8S/2633 emulator chip.
0
0
0
0
0
0, 1, 1
0
1, 0, 1
1
P35
SCK1/SCK4
1
output pin*
output pin*
0
0
0
0
0
0, 1, 1
0
1, 0, 1
1
P35
SCK1/SCK4
output pin
output pin
0
1
1
SCK1/SCK4
1
1
output pin*
IRQ5 input
1
1
SCK1/SCK4
output pin
IRQ5 input
1
0, 1, 1
0
1, 0, 1
0
0
0
0
0
SCK1/SCK4
SCL0
input pin
input/output pin
2
2
0*
1*
2
2
1*
0*
SCK1/SCK4
input pin
1
1
3
0*
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