MSP430G2553: msp430g2553 answering to WRITE address but not READ address

Part Number:MSP430G2553

Dear,

in example "msp430x22x4_uscib0_i2c_13.c" there is an implementation of an I2C slave which can do both receive and transmit bytes.

It works ok with complementary example "msp430x22x4_uscib0_i2c_12.c".

However, I'm curious about something.

Previous examples were answering to I2C scan procedures for both Write (0x48 << 1 == 0x90) and Read (((0x48 << 1 )+1) == 0x91) addresses.

However, this version only answers for Write one.

Can anybody explain me this behavior?

Thanks a lot!