Z0221524ASGR50A5 Zilog, Z0221524ASGR50A5 Datasheet - Page 16

• Manufacturer Part Number: Z0221524ASGR50A5
• Description: IC MODEM CONTROLLER 44-LQFP
• Manufacturer: Zilog

Specifications of Z0221524ASGR50A5

• Data Format: V.21, V.22, V.23, Bell 103, Bell 212A
• Baud Rates: 2.4k
• Interface: Serial
• Voltage - Supply: 4.5 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 44-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Parallel Host Interface
PS001907-0904
Symbol
Note:
DTR/HD0 36
RTS/HD1 37
PB2/HD2
PB3/HD3
DCD/HD4 40
CTS/HD5 41
RI/HD6
DSR/HD7 43
S/P
HD0–HD7 are the Host Parallel Interface Data bus. Bi-directional, Active High, Parallel mode only. These pins
constitute an 8-bit bi-directional data bus used for the transfer of control and status information. HD0–HD7 are
3-stated except for a PIDT or PICR read.
This comment applies to pins HD0–HD7, respectively.
PLCC
Pin #
38
39
42
44
Table 1. Pin Descriptions (Continued)
With the Parallel Host Interface, a host controller can put the Z02215 on its pro-
cessor bus and access it as a peripheral.The Parallel Interface consists of two
host registers:
•
•
Register 0–Parallel Interface Data Register (PIDR)
Register 1–Parallel Interface Status Register (PISR)
LQFP
Pin #
19
20
21
22
23
24
25
26
27
Single Chip Modem with Integrated Controller, Data Pump, and AFE
Function
Data Terminal
Ready
Request To
Send
General
Purpose Output
General
Purpose Output
Data Carrier
Detect
Clear To Send Output
Ring Indicator
Data Set Ready Output
Serial or
Parallel Mode
Select
Input
Input
Output
Output
Output
Output
Input
Direction Description
Serial mode only. This signal is asserted by
the DTE when it is ready to receive data.
Serial mode only. This signal indicates that the
DTE is ready to send data to the modem. When
the modem is ready, it asserts CTS (see CTS,
below).
Serial mode only. Programmable using
Diplomat™.
Serial mode only. Programmable using
Diplomat™.
Serial mode only. This signal indicates that a
modem carrier signal has been detected on the
line.
Serial mode only. This signal indicates that the
modem is ready for the DTE to send data to it.
Serial mode only. When active, this signal
indicates that a ring signal on the phone line is
detected by the modem.
Serial mode only. This pin is the Data Set
Ready pin and indicates when the modem is
ready to transmit data. Refer to the &S
command for details.
This pin configures the Z02215 Host interface to
Serial or Parallel mode. When High (V
Serial mode is selected and when this pin is tied
Low (GND), the Parallel mode is selected.
Parallel Host Interface
CC
Z02215
), the
10