Section 1 Overview
Rev. 3.00 Jan 25, 2006 page 8 of 872
REJ09B0286-0300
1.3.3
Pin Functions
Table 1.2
Pin Functions
Pin No.
Type
Symbol
TBP-112A
I/O
Name and Function
VCC
G8, G9
Input
Power supply pins. Connect all these
pins to the system power supply.
VCL
E3
Input
Power supply pin. Connect this pin to
VCC.
Power
supply
VSS
F4, G1
E8, D10
C11, B5
C5
Input
Ground pins. Connect all these pins to
the system power supply (0 V).
XTAL
B1
Input
EXTAL
C2
Input
For connection to a crystal resonator. An
external clock can be supplied from the
EXTAL pin. For an example of crystal
resonator connection, see section 26,
Clock Pulse Generator.
φ
G3
Output
Supplies the system clock to external
devices.
EXCL
G3
Input
32.768-kHz external clock for subclock
should be supplied.
X1
E1
Input
Clock
X2
E2
Input
For connection to a crystal resonator. An
external clock can be supplied from the
X2 pin. For an example of crystal
resonator connection, see section 26,
Clock Pulse Generator.
Operating
mode
control
MD2
MD1
MD0
C1
D3
D2
Input
These pins set the operating mode.
Inputs at these pins should not be
changed during operation.
RES
B2
Input
Reset pin. When this pin is low, the chip
is reset.
RESO
C3
Output
Outputs a reset signal to an external
device.
STBY
E4
Input
When this pin is low, a transition is made
to hardware standby mode.
System
control
FWE
A2
Input
Pin for use by flash memory.
Summary of Contents for H8S/2158
Page 10: ...Rev 3 00 Jan 25 2006 page viii of lii...
Page 36: ...Rev 3 00 Jan 25 2006 page xxxiv of lii B Product Lineup 863 C Package Dimensions 864 Index 865...
Page 47: ...Rev 3 00 Jan 25 2006 page xlv of lii Appendix Figure C 1 Package Dimensions TBP 112A 864...
Page 54: ...Rev 3 00 Jan 25 2006 page lii of lii...
Page 70: ...Section 1 Overview Rev 3 00 Jan 25 2006 page 16 of 872 REJ09B0286 0300...
Page 118: ...Section 3 MCU Operating Modes Rev 3 00 Jan 25 2006 page 64 of 872 REJ09B0286 0300...
Page 126: ...Section 4 Exception Handling Rev 3 00 Jan 25 2006 page 72 of 872 REJ09B0286 0300...
Page 198: ...Section 6 Bus Controller Rev 3 00 Jan 25 2006 page 144 of 872 REJ09B0286 0300...
Page 326: ...Section 10 8 Bit PWM Timer PWM Rev 3 00 Jan 25 2006 page 272 of 872 REJ09B0286 0300...
Page 440: ...Section 15 Watchdog Timer WDT Rev 3 00 Jan 25 2006 page 386 of 872 REJ09B0286 0300...
Page 606: ...Section 17 I 2 C Bus Interface IIC Rev 3 00 Jan 25 2006 page 552 of 872 REJ09B0286 0300...
Page 742: ...Section 19 Multimedia Card Interface MCIF Rev 3 00 Jan 25 2006 page 688 of 872 REJ09B0286 0300...
Page 750: ...Section 21 D A Converter Rev 3 00 Jan 25 2006 page 696 of 872 REJ09B0286 0300...
Page 768: ...Section 22 A D Converter Rev 3 00 Jan 25 2006 page 714 of 872 REJ09B0286 0300...
Page 770: ...Section 23 RAM Rev 3 00 Jan 25 2006 page 716 of 872 REJ09B0286 0300...
Page 824: ...Section 26 Clock Pulse Generator Rev 3 00 Jan 25 2006 page 770 of 872 REJ09B0286 0300...
Page 844: ...Section 27 Power Down Modes Rev 3 00 Jan 25 2006 page 790 of 872 REJ09B0286 0300...
Page 878: ...Section 28 List of Registers Rev 3 00 Jan 25 2006 page 824 of 872 REJ09B0286 0300...
Page 926: ...Index Rev 3 00 Jan 25 2006 page 872 of 872 REJ09B0286 0300...