ZIOL2201 datasheet(16/92 Pages) RENESAS

16 / 92 page

ZIOL2xxx Datasheet

April 26, 2016

The (stripped down) IC versions ZIOL22xx/21xx contain only one channel. Figure 3.3 and Figure 3.4 show the

data path of the ZIOL22xx versions and ZIOL21xx versions, respectively. The following chapters regarding details

of the transmitter and receiver apply to IC versions with two channels (ZIOL24xx). The in the following described

functionality applies to IC versions with one channel (ZIOL22xx/21xx) correspondingly. With the implicit

understanding that one channel IC versions cannot perform tandem (master) mode operations or coordinated

transceiver operations no explicit statement in the following chapters will reflect this.

Figure 3.4

ZIOL21xx Transceiver Data Path in Principle

Device

Legend:

AF:

Analog Filter (on/off configurable)

CS:

Current Sink (on/off/strength configurable)

DF:

Digital Filter (on/off configurable)

I1, I2:

Transmit/Receive Data Inverter (on/off configurable)

Data Latch, stores channel transmit status

SPI:

Serial Peripheral Interface

Analog Block

Digital Block

AUX

AUX_I

AUX_O

TX_EN/

SPI_CLK

TX/

MOSI

RX/

MISO

COM_O

COM_I

AUX_TX

AUX_EN

AUX_RX

Single channel

transceiver

SPI

SPI_EN_L

CLK

Device

ZIOL21xx Data Path

RST_L

INT_L

WURQ_L

Control

MOSI

MISO

Conf.Reg[7][7:5]

OUT

n.c.

The master mode configuration flags MASTER_MODE, EN_FOLLOW_PRIM_CH and PRIMARY_MASTER_CH

located in the MASTER_SENS_CTRL configuration register (refer to Table 3.7) control the switches S0, S1, S2

and S3 (Figure 3.2, Figure 3.3 and Figure 3.4) thus they control the actually used data path. In principle, the

ZIOL2xxx IC family supports five data path types which are mentioned in Table 3.1. In case the MASTER_MODE

flag is cleared (=0), the IC operates in device mode. For more information about the operation in device/master

mode, please refer to chapter 3.2.2.1.

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