Fujitsu MB96300 series Hardware Manual page 209

MB96300 Super Series Hardware Manual
Table 8.4-1 Mode Pin settings
Mode pin setting
Operation mode
MD2 MD1 MD0
Serial
0 1 0 Communication
mode
Internal Vector
0 1 1
mode
Reserved (Test
1 0 0
mode)
Reserved (Test
1 0 1
mode)
External Vector
1 1 0
mode 2
Parallel Flash
1 1 1
programming mode
■ Operation modes
●
External Vector modes (MD[2:0]="000", "001" or "110")
External vector modes are CPU run modes where the Boot Vector and a mode byte are read from an external
memory at FF:FFDC
external bus interface.
Optionally, a built-in monitor debugger kernel can be initialized, if the BDM Activation Marker is set in
ROM Configuration Block. Note that neither internal ROM nor built-in monitor debugger kernel can be used
in External Vector mode, if read security is enabled.
See CHAPTER 12 "EXTERNAL BUS INTERFACE" for more details. For details how to configure the
monitor debugger kernel, please refer to application note MCU-AN-390213-E.
●
Internal Vector mode (MD[2:0]="011")
The Internal vector mode is a CPU run mode where the Boot Vector (user program start address) is read from
an internal memory at FF:FFDC
Optionally, a fixed Boot Vector can be selected, if the Fixed Vector Activation Marker is set in the ROM
Configuration Block. The fixed Boot Vector allows implementation of boot loader applications.
After main reset and before starting user program, the Boot ROM temporarily scans dedicated UART
channels for an external communication request as in Serial Communication mode
scanning can be disabled, if the UART Scan Deactivation Marker is set in the ROM Configuration Block.
Optionally, a built-in monitor debugger kernel can be initialized, if the BDM Activation Marker is set in the
ROM Configuration Block.
1. Not supported by all derivatives.
Boot Vector
name Source
-
Internal memory
or fixed value
-
-
External
memory
-
via the external bus interface. These modes are available only for devices with an
H
.
H
CHAPTER 8 RESETS AND STARTUP
Configuration of
external bus for
Boot Vector read
access
Used for serial Flash
-
programming
Available for all
-
devices
-
-
Available only for
8 bits, address/data
devices with external
non-multiplexed
bus interface
Available only for
-
Flash devices
Remarks
1
. Optionally, this
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