Section 3 MCU Operating Modes
Rev. 1.00 Apr. 28, 2008 Page 67 of 994
REJ09B0452-0100
Section 3 MCU Operating Modes
3.1 Operating
Mode
Selection
This LSI supports three operating modes (modes 2, 4, and 6). The operating mode is determined
by the setting of the mode pins (MD2 and MD1). Table 3.1 shows the MCU operating mode
selection.
Table 3.1
MCU Operating Mode Selection
MCU Operating
Mode MD2
MD1
MD0
*
CPU Operating
Mode Description On-Chip
ROM
2 0
1
0
Advanced
Single-chip
mode
Enabled
4 1
0
0
Flash
memory
programming/erasing
6
1
1
0
Emulation
On-chip emulation mode Enabled
Note:
*
MD0 is not available as a pin and is internally fixed to 0.
Modes 2 is single-chip mode.
Modes 0, 1, 3, 5 and 7 are not available in this LSI. Modes 4 and 6 are operating modes for a
special purpose. Thus, mode pins should be set to enable mode 2 in the normal program execution
state. Mode pin settings should not be changed during operation. After a reset is canceled, the
mode pin inputs should be latched by reading MDCR.
Mode 4 is a boot mode for programming or erasing the flash memory. For details, see section 24,
Flash Memory.
Mode 6 is an on-chip emulation mode. In this mode, this LSI is controlled by an on-chip emulator
(E10A) via the JTAG, thus enabling on-chip emulation.
Summary of Contents for H8S/2100 Series
Page 2: ...Rev 1 00 Apr 28 2008 Page ii of xxvi...
Page 54: ...Section 1 Overview Rev 1 00 Apr 28 2008 Page 28 of 994 REJ09B0452 0100...
Page 92: ...Section 2 CPU Rev 1 00 Apr 28 2008 Page 66 of 994 REJ09B0452 0100...
Page 158: ...Section 5 Interrupt Controller Rev 1 00 Apr 28 2008 Page 132 of 994 REJ09B0452 0100...
Page 244: ...Section 8 8 Bit PWM Timer PWMU Rev 1 00 Apr 28 2008 Page 218 of 994 REJ09B0452 0100...
Page 330: ...Section 10 16 Bit Timer Pulse Unit TPU Rev 1 00 Apr 28 2008 Page 304 of 994 REJ09B0452 0100...
Page 416: ...Section 13 8 Bit Timer TMR Rev 1 00 Apr 28 2008 Page 390 of 994 REJ09B0452 0100...
Page 612: ...Section 18 I 2 C Bus Interface IIC Rev 1 00 Apr 28 2008 Page 586 of 994 REJ09B0452 0100...
Page 706: ...Section 20 LPC Interface LPC Rev 1 00 Apr 28 2008 Page 680 of 994 REJ09B0452 0100...
Page 752: ...Section 21 FSI Interface Rev 1 00 Apr 28 2008 Page 726 of 994 REJ09B0452 0100...
Page 774: ...Section 23 RAM Rev 1 00 Apr 28 2008 Page 748 of 994 REJ09B0452 0100...
Page 1008: ...Section 28 Electrical Characteristics Rev 1 00 Apr 28 2008 Page 982 of 994 REJ09B0452 0100...
Page 1020: ...Rev 1 00 Apr 28 2008 Page 994 of 994 REJ09B0452 0100...
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Page 1024: ...H8S 2117R Group Hardware Manual...