KS57C2308/P2308/C2316/P2316
I/O PORTS
10-1
10
I/O PORTS
OVERVIEW
The KS57C2308/C2316 has 9 ports. There are total of 8 input pins, 8 output pin and 24 configurable I/O pins, for
a maximum number of 40 pins.
Pin addresses for all ports are mapped to bank 15 of the RAM. The contents of I/O port pin latches can be read,
written, or tested at the corresponding address using bit manipulation instructions.
Port Mode Flags
Port mode flags (PM) are used to configure I/O ports to input or output mode by setting or clearing the
corresponding I/O buffer.
Pull-Up Resistor Mode Register (PUMOD)
The pull-up resistor mode registers (PUMOD) are used to assign internal pull-up resistors by software to specific
ports. When a configurable I/O port pin is used as an output pin, its assigned pull-up resistor is automatically
disabled, even though the pin's pull-up is enabled by a corresponding PUMOD bit setting.
N-Channel Open-Drain Mode Register (PNE)
The n-channel, open-drain, mode register (PNE) is used to configure outputs as n-channel, open-drain outputs or
as push-pull outputs.
Summary of Contents for KS57C2308
Page 30: ...ADDRESS SPACES KS57C2308 P2308 C2316 P2316 2 22 NOTES ...
Page 168: ...SAM47 INSTRUCTION SET KS57C2308 P2308 C2316 P2316 5 94 NOTES ...
Page 170: ......
Page 206: ...POWER DOWN KS57C2308 P2308 C2316 P2316 8 8 NOTES ...
Page 210: ...RESET KS57C2308 P2308 C2316 P2316 9 4 NOTES ...
Page 222: ...I O PORTS KS57C2308 P2308 C2316 P2316 10 12 NOTES ...
Page 272: ...LCD CONTROLLER DRIVER KS57C2308 P2308 C2316 P2316 12 24 NOTES ...
Page 280: ...SERIAL I O INTERFACE KS57C2308 P2308 C2316 P2316 13 8 NOTES ...
Page 294: ...MECHANICAL DATA KS57C2308 P2308 C2316 P2316 15 2 NOTES ...
Page 310: ...KS57P2308 P2316 OTP KS57C2308 P2308 C2316 P2316 16 16 NOTES ...
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