UPD78F1502AGK-GAK-AX Datasheet, PDF (687/1031 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcontrollers

78K0R/Lx3
CHAPTER 16 LCD CONTROLLER/DRIVER
Cautions 1. The VLCD setting is valid only when the voltage boost circuit is operating.
2. Bits 5 to 7 must be set to 0.
3. Be sure to change the VLCD value after having stopped the operation of the voltage boost circuit
(VLCON = 0).
4. These values above may change after device evaluation.
5. To use the internal voltage boosting method, specify the reference voltage by using the VLCD
register (or perform a reset to use the default value of the reference voltage), wait for the reference
voltage setup time (2 ms (min.)), and then set VLCON to 1.
(5) Port function register (PFALL)
This register sets whether to use pins P50 to P57, P90 to P97, P100 to P102, and P140 to P147 as port pins
(other than segment output pins) or segment output pins.
PFALL is set using a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation sets PFALL to 00H.
Remark The port pins to be used alternatively with the segment output pins vary, depending on the product.
• 78K0R/LF3: P50 to P57, P90 to P92, P100, P140 to P147
• 78K0R/LG3: P50 to P57, P90 to P97, P100, P140 to P147
• 78K0R/LH3: P50 to P57, P90 to P97, P100 to P102, P140 to P147
Figure 16-6. Format of Port Function Register (PFALL) (1/2)
Address: F0080H After reset: 00H R/W
Symbol
7
6
5
PFALL
0
PF14H
PF14L
4
PF10
3
PF9H^Note
2
PF9L
1
PF5H
0
PF5L
PF14H
0
1
Port/segment outputs specification of the P144 to P147 pins
Used the P144 to P147 pins as port (other than segment output)
Used the P144 to P147 pins as segment output
PF14L
0
1
Port/segment outputs specification of the P140 to P143 pins
Used the P140 to P143 pins as port (other than segment output)
Used the P140 to P143 pins as segment output
PF10
0
1
Port/segment outputs specification of the P100 to P102 pins
Used the P100 to P102 pins as port (other than segment output)
Used the P100 to P102 pins as segment output
PF9H
0
1
Port/segment outputs specification of the P94 to P97 pins
Used the P94 to P97 pins as port (other than segment output)
Used the P94 to P97 pins as segment output
PF9L
0
1
Port/segment outputs specification of P90 to P93 pins
Used the P90 to P93 pins as port (other than segment output)
Used the P90 to P93 pins as segment output
Note 78K0R/LG3, 78K0R/LH3 only
R01UH0004EJ0501 Rev.5.01
671
Jun 20, 2011