SH7101 Datasheet, PDF (78/486 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

3. MCU Operating Modes
3.2 Input/Output Pins
Table 3.3 describes the configuration of operating mode related pins.
Table 3.3 Operating Mode Pin Configuration
Pin Name
MD0
MD1
MD2
MD3
FWP
Input/Output
Input
Input
Input
Input
Input
Function
Designates operating mode through the level applied to this pin
Designates operating mode through the level applied to this pin
Designates clock mode through the level applied to this pin
Designates clock mode through the level applied to this pin
Pin for the hardware protection against writing/erasing the on-chip
flash memory. In this LSI, conncet this pin to V .
CC
3.3 Explanation of Operating Modes
This LSI does not support modes 0 to 2 (MCU extension mode 0 to 2).
3.3.1 Mode 3 (Single chip mode)
All ports can be used in this mode, however the external address cannot be used. The SH7101
supports only this mode.
3.3.2 Clock Mode
The input waveform frequency can be used as is, doubled or quadrupled as system clock
frequency.
Rev.2.00 Sep. 27, 2007 Page 44 of 448
REJ09B0394-0200