Z90251 Datasheet, PDF (17/97 Pages) Zilog, Inc. – eZVision 200 Television Controllers with OSD

Z90255 ROM and Z90251 OTP
32 KB Television Controller with OSD
9
Table 3 Multiplexed Pin Descriptions (Continued)
Acronym
P61/ADC2
P41/ADC1
P44/PWM7
Pin Name(s)
Port 6 bit 1 or
Analog-to-Digital Converter
Channel 2
Port 4 bit 1 or
Analog-to-Digital Converter
Channel 1
Port 4 bit 4 or Pulse Width
Modulator 7
Description
Port 6 bit 1 can be programmed as an input or output
line.
Port 4 bit1 can be programmed as an input or output
line.
These port pins can be programmed as input or output
ports. Each PWM channel has 6-bit resolution.
P45/PWM8
Port 4 bit 5 or Pulse Width
Modulator 8
P46/PWM9
Port 4 bit 6 or Pulse Width
Modulator 9
P47/PWM10
PWM11/P56
PWM6/P55
PWM6/P55
PWM5/P54
Port 4 bit 7 or Pulse Width
Modulator 10
Pulse Width Modulator 11 or
Port 5 bit 6
Pulse Width Modulator 6 or
Port 5 bit 5
Pulse Width Modulator 6 or
Port 5 bit 5
Pulse Width Modulator 5 or
Port 5 bit 4
The PWM signal-generator channel has 14-bit
resolution. Port 5 bit 6 and port 5 bit 5 can be
programmed as inputs or outputs.
These port pins can be programmed as input or output
ports. Each PWM signal-generator channel has 6-bit
resolution.
PWM4/P53
Pulse Width Modulator 4 or
Port 5 bit 3
PWM3/P52
PWM2/P51
Pulse Width Modulator 3 or
Port 5 bit 2
Pulse Width Modulator 2 or
Port 5 bit 1
PWM1/P50
Pulse Width Modulator 1 or
Port 5 bit 0
Note: PWM6 can be either 6-bit or 14-bit output.
The PWM signal-generator channel has 6-bit resolution.
Port 5 bit 1 and Port 5 bit 0 can be programmed as an
input or output port.
The PWM signal-generator channel has 6-bit resolution.
Port 5 bit 0 can be programmed as an input or output
port.
PS001301-0800