
Section 4 Clock Pulse Generator (CPG)
Rev. 4.00 Sep. 14, 2005 Page 146 of 982
REJ09B0023-0400
4.2 Input/Output
Pins
Table 4.1 lists the CPG pins and their functions.
Table 4.1
Pin Configuration and Functions of the Clock Pulse Generator
Pin Name
Symbol I/O
Function
(clock operating modes 2 and 6)
Function
(clock operating mode 7)
Mode control pins
MD0
Input
Set the clock operating mode.
MD2
Input
Set the clock operating mode.
XTAL
Output Connected to the crystal resonator (leave this pin open-circuit
when the crystal resonator is not in use).
Crystal input/output pins
(Clock input pins)
EXTAL
Input
Connected to the crystal resonator or used to input an external
clock.
Clock input/output pin
CKIO
I/O
Clock output pin. The pin can also
be placed in the high-impedance
state.
Input for the external clock
pulse.
Clock-output pin
CKIO2
Output Low-level output or clock output pin.
The selection is described in the
description of the common control
registers in section 12, Bus State
Controller (BSC).
High impedance
4.3
Clock Operating Modes
Table 4.2 shows the relationship between the mode control pins (MD2 and MD0) combinations
and the clock operating modes. Table 4.3 shows the usable frequency ranges in the clock operating
modes.
Table 4.2
Clock Operating Modes
Pin Values
Clock I/O
Mode MD2 MD0 Source
Output
PLL2
On/Off
PLL1
On/Off
CKIO Frequency
2 0 0 EXTAL
or
Crystal resonator
CKIO ON
(
×
4) ON
(
×
1, 2)
(EXTAL or
Crystal resonator)
×
4
6 1 0 EXTAL
or
Crystal resonator
CKIO ON
(
×
2) ON
(
×
1, 2, 3, 4)
(EXTAL or
Crystal resonator)
×
2
7 1 1 CKIO
OFF
ON
(
×
1, 2, 3, 4)
(CKIO)
Содержание HD6417641
Страница 2: ...Rev 4 00 Sep 14 2005 Page ii of l...
Страница 7: ...Rev 4 00 Sep 14 2005 Page vii of l...
Страница 11: ...Rev 4 00 Sep 14 2005 Page xi of l USB Universal serial bus WDT Watch dog timer...
Страница 12: ...Rev 4 00 Sep 14 2005 Page xii of l...
Страница 28: ...Rev 4 00 Sep 14 2005 Page xxviii of l...
Страница 204: ...Section 4 Clock Pulse Generator CPG Rev 4 00 Sep 14 2005 Page 154 of 982 REJ09B0023 0400...
Страница 212: ...Section 5 Watchdog Timer WDT Rev 4 00 Sep 14 2005 Page 162 of 982 REJ09B0023 0400...
Страница 228: ...Section 6 Power Down Modes Rev 4 00 Sep 14 2005 Page 178 of 982 REJ09B0023 0400...
Страница 246: ...Section 8 X Y Memory Rev 4 00 Sep 14 2005 Page 196 of 982 REJ09B0023 0400...
Страница 318: ...Section 11 User Break Controller UBC Rev 4 00 Sep 14 2005 Page 268 of 982 REJ09B0023 0400...
Страница 454: ...Section 12 Bus State Controller BSC Rev 4 00 Sep 14 2005 Page 404 of 982 REJ09B0023 0400...
Страница 500: ...Section 13 Direct Memory Access Controller DMAC Rev 4 00 Sep 14 2005 Page 450 of 982 REJ09B0023 0400...
Страница 504: ...Section 14 U Memory Rev 4 00 Sep 14 2005 Page 454 of 982 REJ09B0023 0400...
Страница 566: ...Section 17 Compare Match Timer CMT Rev 4 00 Sep 14 2005 Page 516 of 982 REJ09B0023 0400...
Страница 734: ...Section 18 Multi Function Timer Pulse Unit MTU Rev 4 00 Sep 14 2005 Page 684 of 982 REJ09B0023 0400...
Страница 868: ...Section 21 A D Converter Rev 4 00 Sep 14 2005 Page 818 of 982 REJ09B0023 0400...
Страница 914: ...Section 23 I O Ports Rev 4 00 Sep 14 2005 Page 864 of 982 REJ09B0023 0400...
Страница 956: ...Section 24 List of Registers Rev 4 00 Sep 14 2005 Page 906 of 982 REJ09B0023 0400...
Страница 1016: ...Section 25 Electrical Characteristics Rev 4 00 Sep 14 2005 Page 966 of 982 REJ09B0023 0400...
Страница 1024: ...Appendix Rev 4 00 Sep 14 2005 Page 974 of 982 REJ09B0023 0400...
Страница 1032: ...Rev 4 00 Sep 14 2005 Page 982 of 982 REJ09B0023 0400 X X Y data addressing 52 X Y memory 193...
Страница 1035: ......
Страница 1036: ...SH7641 Hardware Manual...