Electronics America Computer Hardware User Manual

85
Chapter 5 Port Functions
5
(vi) AN6 and AN7 (analog input)
These pins receive analog signals for the A/D converter.
5.7.1 Hardware Configuration
Fig. 5-34 through 5-37 show the hardware configuration of port 6.
Fig. 5-34 Block Diagram of P60 through P63 (Port 6)
P6n
n = 0, 1, 2, 3
WRMM6
Memory expansion mode register
MM6
RDMM6
WRP6
Output latch
P6n
WRPM6
Port 6 mode register
PM6n
RDP6
Memory reference
instruction without "&"
Memory reference
instruction with "&"
Internal bus