Rohm LAPIS SEMICONDUCTOR ML620Q503, Руководство пользователя

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ML620Q503/Q504 User’s Manual
Chapter 19 Port 2
FEUL620Q504 19–8
19.2.5 Port 2 Mode Register (P2MOD)
Address: 0F224H
Access: R/W
Access size: 8/16 bits
Initial value: 0000H
7 6 5 4 3 2 1 0
P2MOD0 – – – – P23MD0 P22MD0 P21MD0 P20MD0
R/W R/W R/W R/W R/W R/W R/W R/W R/W
Initial value 0 0 0 0 0 0 0 0
15 14 13 12 11 10 9 8
P2MOD1 – – – – P23MD1 P22MD1 P21MD1 P20MD1
R/W R/W R/W R/W R/W R/W R/W R/W R/W
Initial value 0 0 0 0 0 0 0 0
P2MOD0 and P2MOD1 are special function registers (SFRs) to select the primary, secondary, or tertiary function of
Port 2.
Description of Bits
•
P20MD1-0 (bit 8,0)
The P20MD1-0 bits are used to select the primary, secondary, or tertiary function of the P20 pin.
P20MD1 P20MD0 Description
0 0
General-purpose input/output mode / External interrupt (initial
value)
0 1 RC oscillation waveform input pin for RC-AD (IN1)
1 0 SSIOF data output (SOUTF0)
1 1 UARTF data input (RXDF0)
•
P21MD1-0 (bit 9,1)
The P21MD1-0 bits are used to select the primary, secondary, or tertiary function of the P21 pin.
P21MD1 P21MD0 Description
0 0 General-purpose input/output mode / External interrupt (initial value)
0 1 Reference capacitor connection pin for RC-ADC (CS1)
1 0 SSIOF data input (SINF0)
1 1 USRTF data output (TXDF0)
•
P22MD1-0 (bit 10,2)
The P22MD1-0 bits are used to select the primary, secondary, or tertiary function of the P22 pin.
P22MD1 P22MD0 Description
0 0 General-purpose input/output mode / External interrupt (initial value)
0 1 Reference resistor connection pin for RC-ADC (RS1)
1 0 SSIOF clock input/output (SCKF0)
1 1 FTM output mode (TMOUT2)