UPD17073 NEC, UPD17073 Datasheet - Page 145
UPD17073
Manufacturer Part Number
UPD17073
Description
4-BIT SINGLE-CHIP MICROCONTROLLER WITH HARDWARE FOR DIGITAL TUNING SYSTEM
Manufacturer
NEC
Datasheet
1.UPD17073.pdf
(226 pages)
- Current page: 145 of 226
- Download datasheet (2Mb)
16.2 IF Counter Input Select Block and Gate Time Control Block
AMIFC and P0D2/AMFIC pin are used as IF counter function pins or general-purpose I/O port pins.
mode. These pins can be set in the input or output mode by using the port 0C bit I/O select register at address 6FH
of BANK1 of RAM. For the configuration and function of the port 0C bit I/O select register, refer to 10.2.3 (2) Port
0C bit I/O select register.
select register.
P0D3/FMIFC/AMIFC
Figure 16-2 shows the configuration of the IF counter input select block and gate time control block.
The IF counter input select block selects, by using the IF counter mode select register, whether the P0D3/FMIFC/
When using the IF counter function, be sure to set the P0D3/FMIFC/AMIFC and P0D2/AMIFC pins in the input
The gate time control block sets the gate time when the IF counter function is used, by using the IF counter mode
Figure 16-3 shows the configuration and function of the IF counter mode register.
Figure 16-2. Configuration of IF Counter Input Select Block and Gate Time Control Block
P0D2/AMIFC
Input port
IFCMD1 flag
IFCMD0 flag
Pin select
Gate signal generator
IFCCK1 flag
IFCCK0 flag
Operation mode select
FMIFC mode
AMIFC mode
1/2
PD17072,17073
To start
control block
145
Related parts for UPD17073
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
16/8 bit single-chip microcomputer
Manufacturer:
NEC
Datasheet:
Part Number:
Description:
Dual audio power amp circuit
Manufacturer:
NEC
Datasheet:
Part Number:
Description:
Dual comparator
Manufacturer:
NEC
Datasheet:
Part Number:
Description:
MOS type composite field effect transistor
Manufacturer:
NEC
Datasheet:
Part Number:
Description:
50 V/100 mA FET array incorporating 2 N-ch MOSFETs
Manufacturer:
NEC
Datasheet:
Part Number:
Description:
6-pin small MM high-frequency double transistor
Manufacturer:
NEC
Datasheet:
Part Number:
Description:
6-pin small MM high-frequency double transistor
Manufacturer:
NEC
Datasheet:
Part Number:
Description:
6-pin small MM high-frequency double transistor
Manufacturer:
NEC
Datasheet:
Part Number:
Description:
6-pin small MM high-frequency double transistor
Manufacturer:
NEC
Datasheet:
Part Number:
Description:
Twin transistors equipped with different model chips(6P small MM)
Manufacturer:
NEC
Datasheet:
Part Number:
Description:
Bipolar analog integrated circuit
Manufacturer:
NEC
Datasheet: