GMS87C4060 Datasheet, PDF (35/102 Pages) Hynix Semiconductor – 8-BIT SINGLE-CHIP MICROCONTROLLERS

PRELIMINARY
GMS81C4040/87C4060
R2 Port
R2 is an 8-bit CMOS bidirectional I/O port (address
0C4_H). Each I/O pin can independently used as an input or
an output through the R2DD register (address 00C5_H).
The control registers for R2 are shown below.
R2 Data Register
ADDRESS : 00C4_H
RESET VALUE : Undefined
RW RW RW RW RW RW RW RW
R2
R27 R26 R25 R24 R23 R22 R21 R20
R2 Direction Register
ADDRESS : 00C5_H
RESET VALUE : 0000 0000_b
W
W
W
W
W
W
W
W
R2DD
Port Direction
0: Input
1: Output
Serial I/O mode Register
ADDRESS : 00DE_H
RESET VALUE : -000 0001_b
RW RW RW RW RW RW R
SIOM
IOSW SM1 SM0 SCK1 SCK0 SIOST SIOSF
Serial I/O
0: Serial In
1: Serial Out
Clock select
00: PS3
01: PS4
10: PS5
11: External
Seriial Status
0: Busy
1: Finish
Serial Start
0: Ignore
1: Serial start
SM1 SM0 Mode R21 R22 R23
00 -
R21 R22 R23
0 1 Send Sclk Sout R23
1 0 Receive Sclk R22 Sin
11 -
R21 R22 R23
Port function select Register 1
W
W
W
ADDRESS : 00CE_H
RESET VALUE : -000 0000_b
W
W
W
W
FUNC1
EC3S EC2S INT4S INT3S INT2S INT1S INT0S
R27/EC3
0: R27
1: EC3 R25/EC2
0: R25
1: EC2
R20/INT2
R24/INT3 ^{0: R20}
R26/INT4 0: R24 ^{1: INT2}
0: R26 1: INT3
1: INT4
Ext. interrupt edge selection Register
ADDRESS : 00F2_H
RESET VALUE : --00 0000_b
W
W
W
W
W
W
IEDS
IED2H IED2L IED1H IED1L IED0H IED0L
INT2
00: Ignore edge
01: Falling edge
10: Rising edge
11: Falling/Rising edge
R4 Port
R4 is consrutced with 4-bit Open drain Output port and 4-
bit CMOS bidirectional I/O port (address 0C8_H). Each I/O
pin can independently used as an input or an output
through the R4DD register (address 0C9_H).
The control registers for R4 are shown below.
R4 Data Register
ADDRESS : 00C8_H
RESET VALUE : Undefined
RW RW RW RW RW RW RW RW
R4
R47 R46 R45 R44 R43 R42 R41 R40
R4 Direction Register
ADDRESS : 00C9_H
RESET VALUE : 0000 ----_b
W
W
W
W
W
W
W
W
R4DD
Port Direction
0: Input
1: Output
I²C Control Register 1
ICCR1
RW RW
BSW1 BSW0
ADDRESS : 00DB_H
RESET VALUE : 00-0 0000_b
RW RW RW RW RW
ALS ESO BC2 BC1 BC0
I²C enable
0: Disable
1: Enable
Bit count
000_b (8bit)
001_b~111_b (1~7bit)
Slave address identification
0: Accept (Addressing format)
1: Decline (Free data format)
BSW1 BSW0
0
0
0
1
1
0
1
1
R44 R45
R46 R47
R44 R45/PWM4 R46 R47/PWM5
SCL0 R45/PWM4 SDA0 R47/PWM5
R44 SCL1
R46 SDA1
SCL SCL
SDA SDA
PWM control Register 1
ADDRESS : 00EA_H
RESET VALUE : 0000 0000_b
RW RW RW RW RW RW RW RW
PWMCR1 EN5 EN4 EN3 EN2 EN1 EN0 EN8 CNT
EN5,4,3,2,1 : R47,45,43,42,41,40
0: R4x acts normal digital port
1: R4x acts PWM output port
14/8bit PWM count
0: Count start
1: Count stop
R51/PWM8 select
0: R51
1: PWM8
Nov. 1999 Ver 1.0
PRELIMINARY
31