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eZ80F91 Development Kit

User Manual

UM014220-0508 eZ80 Development Kit

Jumper J7

The J7 jumper connection controls Flash boot loader programming. When

the shunt is placed, overwriting of the Flash boot loader program is

enabled. See Table 18.

Jumper J11

The J11 jumper connection controls access to the off-chip Flash memory

device. When the shunt is placed, access to this Flash device is enabled.

See Table 19.

Table 17. J3—DIS_EM

Shunt

Status Function Affected Device

IN Application Module

Hardware Disabled

Communication with 7 x 5 LED and Port emulation circuit

is disabled.

OUT Application Module

Hardware Enabled

Communication with 7 x 5 LED and Port A emulation circuit

is enabled.

Table 18. J7—FlashWE

(Off-Chip)*

Shunt

Status Function Affected Device

OUT The Flash boot sector of the eZ80F91

Module is write-protected.

Flash boot sector of the eZ80F91

Module.

IN The Flash boot sector of the eZ80F91

Module is enabled for writing or

overwriting.

Flash boot sector of the eZ80F91

Module.

Note: As shipped from the factory, external Flash memory is not installed.

1 2 ... 35 36 37 38 39 40 41 42 43 44 45 ... 77 78

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